Norman B. Bliss, USGS/EROS, Sioux Falls, SD
20180430
T_GSM_20180430162220 Selected Soil Map Unit Attributes for the Conterminous United States derived from SSURGO and STATSGO2 and prepared as a contribution to the GlobalSoilMap.net project.
Tabular Digital Data
National Soil Survey Center, USDA/NRCS, Lincoln, Nebraska
20151120
Soil Geographic Databases of the United States (SSURGO and STATSGO2)
FY2016
Ongoing Project
Lincoln, Nebraska
USDA/NRCS
https://www.nrcs.usda.gov/wps/portal/nrcs/main/soils/survey/geo/
https://www.nrcs.usda.gov/wps/portal/nrcs/main/soils/survey/
https://websoilsurvey.nrcs.usda.gov/
https://sdmdataaccess.nrcs.usda.gov/
https://gdg.sc.egov.usda.gov/
SSURGO and STATSGO2 data for selected variables, created by N. Bliss, USGS/EROS for the GlobalSoilMap project (sponsored by the International Union of Soil Science).
The SSURGO and STATSGO2 data were collected to provide soil information for local to national studies, including assistance to farmers, ranchers, planners, transportation officials, and for environmental studies. The FY2016 snapshot was captured on November 20, 2015 (20151120) so that a consistent set of attributes is available and various researchers can replicate their results from a single source. The NRCS schedules a new snapshot near the start of each Fiscal Year. The SSURGO and STATSGO2 data have both spatial and attribute parts, and the attributes are in a complicated hierarchy of tables.
This metadata describes a table (T_GSM_20180430162220) that represents a summary from the hierarchy of attribute tables to give a set of values interpreted at the map unit level. It is designed to be used in conjunction with a spatial (raster) data set of the integer versions of the map unit keys (mukeyint). Using both the spatial data and this table together, maps (individual rasters) can be generated for each of the derived map unit level soil properties.
The data table (T_GSM_20180430162220) was prepared to summarize soil properties for the GlobalSoilMap.net project. This is an effort, sponsored by the Digital Soil Mapping Working Group of the International Union of Soil Sciences, to use state-of-the-art and emerging techologies to make a new digital soil map of the world. This data table is a preliminary step in providing this information for the United States, and is a contribution to the North American Node of the GlobalSoilMap project. See http://globalsoilmap.net/ for an overview and a link to the specifications documents.
Two versions of the spatial data are useful. The first has a 3 arc-second resolution and a geographic map projection, as indicated in the GlobalSoilMap specifications (registered to NASA's Shuttle Radar Topography Mission dataset). Area statistics are not computed from the 3 arc-second version because pixels do not represent equal areas on the ground (a pixel nearer to a pole represents a smaller land area than a pixel nearer to the equator). The second is a 30-meter resolution raster with mukeyint values in the Albers Equal Area projection, which is useful for assessing the area of the mapunit, and from which the count_30m and km2 attributes were derived.
This is a custom query of the SSURGO and STATSGO2 databases.
Similar methods were used to create a standardized set of queries, known as gSSURGO from the SSURGO portion of this database (see https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053628). The gSSURGO database is described as follows:
The FY2016 Gridded Soil Survey Geographic (gSSURGO) Database was released on January 20, 2016. These data are derived from a November 16, 2015, snapshot of the Soil Data Mart database (FY2016 Soil Survey Geographic Database or SSURGO source). These new data are available in both state-wide tiles and the Conterminous U.S. (CONUS) at a resolution of 10 meters in a file geodatabase format. Additional resolutions of 30 meters and 90 meters are available for the Conterminous U.S. (CONUS) gSSURGO database. Each gSSURGO dataset includes all SSURGO vector and attribute tables (with relates) plus the map unit raster layer. Also included is the FY2016 National gSSURGO Value Added Look Up (VALU) Table Database that provides ready-to-map themes such as available water storage and soil organic carbon in (11) standard depth layers and zones; crop root zone depths; available water storage in the crop root zone; drought vulnerable soil landscapes; and potential wetland soil landscapes. A gSSURGO User Guide is also included. These data are available for download or portable media order from the USDA Geospatial Data Gateway. A new release is planned for the second quarter of each Federal fiscal year.
19600101
20151120
observed
Soil data are updated continuously, however this project uses a "snapshot" of the data that is captured near the start of each Federal Government Fiscal Year (e.g., October) and released a short time later (e.g., November). The "beginning date" is set arbitrarily to January 1, 1960, because although it is possible that earlier data persists in SSURGO or STATSGO2, most attribute records have been reviewed or updated since the 1960s. The "ending date" is set as the date of the snapshot used for this dataset.
-127.887457
-65.275431
51.604850
22.878768
ISO 19115 Topic Categories
farming
climatologyMeteorologyAtmosphere
environment
geoscientificInformation
imageryBaseMapsEarthCover
None
total profile depth of soil (cm)
plant exploitable (effective) soil depth (cm)
organic carbon (g/kg)
pH (1:5 soil:water x10)
sand (g/kg)
silt (g/kg)
clay (g/kg)
gravel (g/kg)
ECEC (cmol/kg)
bulk density of the fine earth (< 2mm) fraction (excludes gravel)(Mg/m3)
bulk density of the whole soil in situ (includes gravel)(Mg/m3)
available water capacity (mm)
electrical conductivity, EC (dS/m)
Common geographic areas
United States
None
Conterminous United States (excludes Alaska, Hawaii, territories)
Alabama
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
Florida
Georgia
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
United States
Utah
Vermont
Virginia
Washington
Washington DC
West Virginia
Wisconsin
Wyoming
None
This version of the data uses a proprietary ESRI ArcGIS file geodatabase format. Contact the data provider at USGS/EROS for an ASCII version if a non-proprietary version is needed. The data are in the public domain. The U.S. Department of Agriculture, Natural Resources Conservation Service should be acknowledged as the data source in products derived from these data. This dataset is an interpretation of the SSURGO and STATSGO2 source data and users are cautioned to read all the metadata and use it accordingly. This dataset is not designed for use as a primary regulatory tool in permitting or siting decisions, but may be used as a reference source. This is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions that they make. The Natural Resources Conservation Service will not perform any evaluations of these maps for purposes related solely to State or local regulatory programs. Photographic or digital enlargement of these maps to scales greater than those at which they were originally mapped can cause misinterpretation of the data. If enlarged, maps do not show the small areas of contrasting soils that could have been shown at a larger scale. The depicted soil boundaries, interpretations, and analysis derived from them do not eliminate the need for onsite sampling, testing, and detailed study of specific sites for intensive uses. Thus, these data and their interpretations are intended for planning purposes only. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data.
U.S. Geological Survey, CLIMATE & LAND-USE
Norman B. Bliss (https://orcid.org/0000-0003-2409-5211)
Volunteer
mailing address
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
Sioux Falls
South Dakota
57198
United States of America
1-605-594-6034
bliss@usgs.gov
1-605-594-6151
custserv@usgs.gov
U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center in cooperation with the U.S. Dept. of Agriculture (USDA) Natural Resources Conservation Service (NRCS)
Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1 (Build 4959) Service Pack N/A (Build N/A)
The SSURGO and STATSGO2 have a "low", "representative", and "high" value for most quantitative attributes in the component horizon (chorizon) attribute table. The "representative" values (with _r in the attribute name) are the primary attributes intended to characterize soils for most users. Where the "low" (_l) and "high" (_h) values are given, they are intended to help characterize the uncertainty in the representative values. An additional method of characterizing uncertainty is given by the "low of the low" (_ll) and "high of the high" values (_hh) where "_ll" represents the minimum value of the "low" across all components, and "_hh" represents the maximum value of the "high" across all components. There have not been independent accuracy assessments of the SSURGO and STATSGO2 databases, but they are considered authoritative given the scale of mapping (generally 1:20,000 to 1:30,000 for SSURGO and 1:250,000 for STATSGO2). There is considerable spatial variation of soil properties even within map units. There is wide variation in the size of the map unit (see the km2 attribute). Attribute values in this data table represent the whole map unit, and map units generally have many discontinuous polygons across the survey area (typically a county) with additional variation in topography, climate, land use, and vegetation.
Data are within the stated data ranges, except for the NoData values. The NoData values are 255 for 8-bit unsigned integers, 65535 for 16-bit unsigned integers, 4294967295 for 32-bit unsigned integers, and -3.4e38 for 32-bit floating point numbers. There is one record for each map unit key with no duplicates (thus, each mukeyint is unique). The related geospatial dataset (raster of mukeyint values) is described separately.
The data set is considered complete for the information presented, as described in the abstract and purpose metadata sections. Users are advised to read the rest of the metadata record carefully for additional details.
The map unit information (mukeyint) for SSURGO and STATSGO2 are intermixed in this attribute data table. The spatial datasets use the more detailed SSURGO data where available, and fill gaps with the more general STATSGO2 data where SSURGO data are not available (areas where mapping was not complete at the time of the snapshot, generally for large tracts of Federal land in the Western United States).
A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. The 30-meter resolution rasters tend to over-sample the original vector soil maps, especially for the STATSGO2 areas, so users should understand that the values apply to the entire area of the map unit.
A formal accuracy assessment of the vertical positional information in the data set has not been conducted because it is not applicable.
U.S. Department of Agriculture, Natural Resources Conservation Service
20151120
Soil Survey Geographic (SSURGO) Database
Raster Digital Data Set
Lincoln, Nebraska and Fort Worth, Texas
USDA/NRCS
https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053627
20000
Digital and/or Hardcopy Resources. Most survey areas had map scales of 1:20,000 to 1:24,000, with other survey areas at 1:12,000 to 1:32,000 and a few at smaller scales up to 1:125,000.
19600101
20151120
publication date
SSURGO
SSURGO data were used where they were available (about 85 percent of the Conterminous United States).
U.S. Department of Agriculture, Natural Resources Conservation Service
20091230
General Soil Map of the United States (STATSGO2)
Raster Digital Data Set
Lincoln, Nebraska and Fort Worth, Texas
USDA/NRCS
https://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053629
250000
Digital and/or Hardcopy Resources
19600101
20091230
publication date
STATSGO2
Used to fill gaps where SSURGO data were not available.
A snapshot of the Soil Geographic Data that included the General Soil Map of the United States (STATSGO2) was created by the Natural Resources Conservation Service.
20091230
A snapshot of the Soil Survey Geographic (SSURGO) Data was created by the Natural Resources Conservation Service.
20151120
Python programs developed by Norman Bliss were run to produce custom summarization (aggregation) of variables from the chorizon and component tables to produce a single attribute table for all requested variables at the map unit level. The date given is for the completion of this step (writing the data table).
20180430
Metadata was populated.
20180522
Attribute Table
The table contains attribute information with the map unit level results from SSURGO and STATSGO2 analyses. There are 1758 attribute fields. These are grouped into 26 'entities'. The present 'entity' describes the whole table. The next entity is labeled 'basic attributes' to collect 12 attributes that describe the map unit but do not represent soil properties. The remaining entities each describe a soil property and its method of analysis. The definitions related to the soil property and the links to NRCS metadata are given at the entity level, and the specific distinctions among data fields are given at the attribute level. The order in which attributes are presented in these metadata may not exactly match the order in the associated datafile. This table was prepared to support the analysis for the North American Node of the GlobalSoilMap.net project. The GlobalSoilMap specifications were followed whenever possible. In particular, each attribute that varies by depth was coded for 8 depth zones given here with their labels: 0-5 cm (000_005), 5-15 cm (005_015), 15-30 cm (015_030), 30-60 cm (030_060), 60-100 cm (060_100), 100-200 cm (100_200), the total profile (000_999), and for the plant exploitable (effective) depth of the soil (rootzone). This version of the table also contains intermediate values used in the calculation of the primary GlobalSoilMap variables, which are not required by the specifications, such as the thickness, volume, and mass of soil which was used for weighting when computing weighted averages across horizons. It also includes metadata variables, such as the sum of the component percentages (mu_sum_comppct_r_fix_) which were used in the calculation, where a high value indicates that a large proportion of the land area is included in the calculated result, and a low value indicates that only a small proportion of the land area contributed to the result.
Producer defined. See also the GlobalSoilMap.net specifications, updated [7/12/2015 dd/mm/yyyy][December 7, 2015](not currently online at the GlobalSoilMap.net site but available at https://www.researchgate.net/profile/Ra_Macmillan/publication/283156396_The_GlobalSoilMap_project_specifications/links/5723cbde08ae586b21d8902e/The-GlobalSoilMap-project-specifications.pdf).
Basic attributes
The first 12 attributes represent properties of the map unit, and are not soil properties.
Producer defined
mukeyint
Map unit key. The identifier to link SSURGO and/or STATSGO2 attribute data to spatial data. The SSURGO and STATSGO2 data have an attribute mukey, which is a character string. The mukeyint is an integer version. The mukeyint are unique, and there is no conflict between keys used in SSURGO and those in STATSGO2. Every key used in the spatial data is represented in the attribute data except the NoData value (4294967295). If a mapunit is in the attribute table, but not the spatial data (mukeyint_SaS_30m.img), the count_30m attribute will have a zero value. The mukeyint is represented as a 32-bit unsigned integer. Future versions may have a different range. A NoData value of 4294967295 may occur.There are 0 map units with the NoData value.
Producer defined
52231
2955448
arbitrary integer
source
The soil geographic database that is the source of the data. Represented as a character string. A NoData value may occur as an empty field or null string. There are 0 map units with the NoData value.
Producer defined
Not_in_30m
The map unit does not occur in the 30-meter resolution raster (mukeyint_SaS_30m.img) of map unit keys which constitutes the spatial part of this database. These may be locations where access was denied for soil survey activities. They may also be areas so small that the center of a 30-meter pixel did not fall within the area. They may represent STATSGO2 map units (lkeyint equals 15970) for which the entire area of the map unit was covered with SSURGO data, and therefore the more general STATSGO2 data were not needed.
Producer defined
SSURGO
Data source is the detailed Soil Survey Geographic (SSURGO) Database (FY2016 snapshot).
Producer defined
STATSGO
Data source is the General Soil Map of the United States (STATSGO2) Database.
Producer defined
count_30m
Count of 30-meter resolution pixels in the spatial data which are coded with this map unit key. Each pixel represents 900 square meters of land area. A NoData value of 4294967295 may occur.There are 0 map units with the NoData value.
Producer defined
0
8204518
count
km2
Number of square kilometers which are coded with this map unit key. This is calculated as count_30m * 900.0 / 1000000.0 because there are 1 million square meters in a square kilometer. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 0 map units with the NoData value.
Producer defined
0.0
7384.1
Square Kilometers (km2)
muname
Map unit name. The name given to the map unit by the soil scientist that created the SSURGO or STATSGO2 data record. A NoData value may occur as an empty field or null string. There are 0 map units with the NoData value.
Producer defined
Free-form text string assigned by the Natural Resources Conservation Service.
lkeyint
Legend key, integer version. The numeric identifier for the Soil Survey Area. The SSURGO and STATSGO2 data have an attribute lkey, which is a character string. The lkeyint is an integer version. The lkeyint are unique, and there is no conflict between keys used in SSURGO and those in STATSGO2. Every key used in the spatial data is represented in the attribute data except the NoData value (4294967295). The lkeyint value of 15970 indicates the STATSGO2 data source. The lkeyint is represented as a 32-bit unsigned integer. A NoData value of 4294967295 may occur.There are 0 map units with the NoData value.
Producer defined
10246
68078
arbitrary integer
musym
Map unit symbol. The symbol given to the map unit by the soil scientist that created the SSURGO or STATSGO2 data record. A NoData value may occur as an empty field or null string. There are 0 map units with the NoData value.
Producer defined
Free-form text string assigned by the Natural Resources Conservation Service.
musym_fix
Map unit symbol (corrected version, unofficial). Usually the same as musym. For map units which could not be mapped for some reason, the symbol 'NOTCOM' is used, indicating 'Not Complete', perhaps because access was denied for soil mapping. A NoData value may occur as an empty field or null string. There are 0 map units with the NoData value.
Producer defined
Free-form text string
muname_fix
Map unit name (corrected version, unofficial). Usually the same as muname. Potentially remove extraneous characters. For areas that could not be mapped (musym_fix of NOTCOM), this field has been changed to 'No digital data available' to be consistent with current NRCS coding practice. A NoData value may occur as an empty field or null string. There are 0 map units with the NoData value.
Producer defined
Free-form text string
mukind
Map unit kind. The kind of mapunit as assigned by the soil scientist that created the SSURGO or STATSGO2 data record. A NoData value may occur as an empty field or null string. There are 472 map units with the NoData value.
Producer defined
{Null Value / Empty Field Entry}
No entry was recorded in the database for mukind.
Producer defined
Association
Two or more dissimilar soils that occur in a regularly repeating pattern that could have been separated at the scale of field mapping, but were not separated due to the intended purpose of the survey.
Domain Detail Static Metadata (mdstatdomdet) table of the SSURGO Database
Complex
Two or more dissimilar soils that occur in a regularly repeating pattern, that cannot be separated at the scale of field mapping.
Domain Detail Static Metadata (mdstatdomdet) table of the SSURGO Database
Consociation
At least seventy-five percent (75%) of the map unit is within the range of the soil providing the name of the unit, and closely similar soils.
Domain Detail Static Metadata (mdstatdomdet) table of the SSURGO Database
Undifferentiated group
Two or more similar soils that are not always geographically associated, and are mapped together due to them having the same or very similar use and management concerns.
Domain Detail Static Metadata (mdstatdomdet) table of the SSURGO Database
lkey
Legend key. The original identifier for the Soil Survey Area, recoded as an integer (lkeyint) for this project. A NoData value may occur as an empty field or null string. There are 0 map units with the NoData value.
Producer defined
A character string representation of an integer. See the lkeyint attribute for the range in this dataset.
mukey
Map unit key. The original identifier for the map unit, recoded as an integer (mukeyint) for this project. A NoData value may occur as an empty field or null string. There are 0 map units with the NoData value.
Producer defined
A character string representation of an integer. See the mukeyint attribute for the range in this dataset.
Depth and depth to bedrock attributes
The depth of soil (profile thickness) is useful to understand the soil volume and therefore the quantity of soil available for plant growth, hydrologic function, or other environmental processes. This group has 8 attributes (mu_depth_soil_data_cm, mu_depth_bedrock_BRonly_cm, mu_depth_bedrock_200_cm, mu_depth_bedrock_999_cm, mu_sum_comppct_r_fix_depth_soil_data, mu_sum_comppct_r_fix_depth_bedrock_BRonly, mu_sum_comppct_r_fix_depth_bedrock_200, mu_sum_comppct_r_fix_depth_bedrock_999), which are not necessarily contiguous in the data table. Only the first of these is required by the GlobalSoilMap specifications. Those related to depth to bedrock are experimental. The thickness of each horizon is determined from two horizon-level attributes: 'hzdept_r' is the depth to the top of the horizon and 'hzdepb_r' is the depth to the bottom of the horizon, with '_r' indicating that these are representative values. All depths or thicknesses presented here are in centimeters (cm). Depth to bedrock is measured to the top (hzdept_r) of the bedrock horizon, as determined by the texture designation (or term in-lieu of texture). The depth of soil and depth to bedrock are measured relative to the surface (zero depth at the top of the first horizon). Many soils in the SSURGO and STATSGO2 databases have been, according to common soil mapping practice, described to a depth of 60 inches (152 cm) or 80 inches (203 cm). Because these are arbitrary cutoffs, and the soils may actually be deeper, calculating a weighted average among components could produce a misleading result (although that method has been used for the 'mu_depth_soil_data' and 'mu_depth_rootzone' attributes). To overcome this limitation, the depth to bedrock in the 'mu_depth_bedrock_BRonly' attribute is computed as a weighted average of the depth-to-bedrock for only those components for which bedrock is present. The companion variable, 'mu_sum_comppct_r_fix_depth_bedrock_BRonly' can be used to interpret this value by showing what percentage of the land area in the map unit was included in the mu_depth_bedrock_BRonly calculation. Two experimental measures are included, 'mu_depth_bedrock_200' and 'mu_depth_bedrock_999', although these have not been fully tested and interpreted. The goal with these was to do a weighted average of all components, but to specify an artifical depth for the deep soils to a particular depth (200 cm or 999 cm), unless limited by shallower bedrock. Each of the depth attributes can be interpreted as a a soil volume by multiplying by a suitable land surface area (e.g., the area of the map unit). A set of companion variables with the prefix 'mu_sum_comppct_r_fix_depth_' gives the sum of component percentages used in the calculation of the primary variable. They therefore represent the percentage of the land area of the map unit applicable to the calculation. Components with errors in the depth attributes (hzdept_r and hzdepb_r) were excluded from further analysis (e.g., a gap or overlap in the horizon depth sequence).
SSURGO Metadata - Tables and Columns Report and SSURGO Metadata - Table Column Descriptions Report and SSURGO Metadata - Domains Report available from http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053631 and Soil Survey Manual, Chapter 3: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/publication/?cid=nrcs142p2_054253
mu_depth_soil_data_cm
Depth of the soil, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. A NoData value of 65535 may occur.There are 10430 map units with the NoData value.
Producer defined
0
457
cm
65535 NoData value
mu_depth_bedrock_BRonly_cm
Depth to bedrock, as a weighted average of only the components having bedrock within the depth of observation. If bedrock is not present in the mapunit, a NoData value will be coded. A NoData value of 65535 may occur.There are 218260 map units with the NoData value.
Producer defined
0
257
cm
65535 NoData value
mu_depth_bedrock_200_cm
Depth to bedrock, as a weighted average of all components, with components having soil deeper than 200 cm being reset to 200 cm for this calculation. This is an experimental attribute and not currently recommended for decision making. A NoData value of 65535 may occur.There are 10339 map units with the NoData value.
Producer defined
0
200
cm
65535 NoData value
mu_depth_bedrock_999_cm
Depth to bedrock, as a weighted average of all components, with components with no bedrock having the depth reset to 999 cm for this calculation. This is an experimental attribute and not currently recommended for decision making. A NoData value of 65535 may occur.There are 10339 map units with the NoData value.
Producer defined
0
999
cm
65535 NoData value
mu_sum_comppct_r_fix_depth_soil_data
Sum of component percentages contributing to the mu_depth_soil_data calculation. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 10430 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_depth_bedrock_BRonly
Sum of component percentages contributing to the mu_depth_bedrock_BRonly calculation. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 218260 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_depth_bedrock_200
Sum of component percentages contributing to the mu_depth_bedrock_200 calculation. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 10339 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_depth_bedrock_999
Sum of component percentages contributing to the mu_depth_bedrock_999 calculation. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 10339 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
Plant exploitable depth attributes
The plant exploitable (effective) depth of soil is useful to understand the soil volume and therefore the quantity of soil available for plant growth. It may also be useful for interpreting hydrologic function or other environmental processes. In this dataset, the "effective depth of soil" is labeled as the "rootzone". This group has 8 attributes (mu_depth_rootzone, mu_depth_rootzone_150, mu_depth_rootzone_200, mu_depth_rootzone_999, mu_sum_comppct_r_fix_depth_rootzone, mu_sum_comppct_r_fix_depth_rootzone_150, mu_sum_comppct_r_fix_depth_rootzone_200, mu_sum_comppct_r_fix_depth_rootzone_999), which are not necessarily contiguous in the data table. Only the first of these is required by the GlobalSoilMap specifications. The thickness of each horizon is determined from two horizon-level attributes: 'hzdept_r' is the depth to the top of the horizon and 'hzdepb_r' is the depth to the bottom of the horizon, with '_r' indicating that these are representative values. All depths or thicknesses presented here are in centimeters (cm). Depth to bedrock is measured to the top (hzdept_r) of the bedrock horizon, as determined by the texture designation (or term in-lieu of texture). Depth (i.e., thickness) of the rootzone is determined according to the methods adapted from the calculations used for the National Commodity Crop Productivity Index (NCCPI), in which the soil depth is restricted by physical or chemical conditions that restrict root growth (see details below). The depth of the rootzone attributes are all measured relative to the surface (zero depth at the top of the first horizon). Many soils in the SSURGO and STATSGO2 databases have been, according to common soil mapping practice, described to a depth of 60 inches (152 cm) or 80 inches (203 cm). Because these are arbitrary cutoffs, and the soils may actually be deeper, calculating a weighted average among components could produce a misleading result (although that method has been used for the 'mu_depth_rootzone' attribute). To overcome this limitation, the depth of the rootzone in the 'mu_depth_rootzone' attribute is computed as a weighted average for only those components for which soil is present. The companion variable, 'mu_sum_comppct_r_fix_depth_rootzone' can be used to interpret this value by showing what percentage of the land area in the map unit was included in the mu_depth_rootzone calculation. Three experimental measures are included, 'mu_depth_rootzone_150', 'mu_depth_rootzone_200' and 'mu_depth_rootzone_999', although these have not been fully tested and interpreted. The goal with these was to do a weighted average of all components, but to specify an artifical depth for the deep soils to a particular depth (150 cm, 200 cm, or 999 cm), unless limited by shallower rootzone restrictions. Each of the depth attributes can be interpreted as a a soil volume by multiplying by a suitable land surface area (e.g., the area of the map unit). A set of companion variables with the prefix 'mu_sum_comppct_r_fix_depth_' gives the sum of component percentages used in the calculation of the primary variable. They therefore represent the percentage of the land area of the map unit applicable to the calculation. Components with errors in the depth attributes (hzdept_r and hzdepb_r) were excluded from further analysis (e.g., a gap or overlap in the horizon depth sequence). The detailed criteria for the calculation of the depth of the rootzone (effective soil depth) are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. The depth at the bottom of the rootzone is also used as a constraint for the calculation of other variables, e.g., 'mu_soc_r_mr_g_gF_rootzone' for the soil organic carbon in the rootzone.
SSURGO Metadata - Tables and Columns Report and SSURGO Metadata - Table Column Descriptions Report and SSURGO Metadata - Domains Report available from http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053631 and User Guide for the National Commodity Crop Productivity Index (NCCPI) version 2.0, 2012 at https://www.nrcs.usda.gov/wps/PA_NRCSConsumption/download?cid=nrcs142p2_050734&ext=pdf and Soil Survey Manual, Chapter 3: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/publication/?cid=nrcs142p2_054253
mu_depth_rootzone_cm
Depth to the bottom of the root zone, as a weighted average of all components. A NoData value of 65535 may occur.There are 10394 map units with the NoData value.
Producer defined
0
457
cm
65535 NoData value
mu_depth_rootzone_150_cm
Depth to the bottom of the root zone, as a weighted average of all components, with components having no rootzone restrictions within 150 cm being reset to 150 cm for this calculation. This is an experimental attribute and not currently recommended for decision making. A NoData value of 65535 may occur.There are 10339 map units with the NoData value.
Producer defined
0
150
cm
65535 NoData value
mu_depth_rootzone_200_cm
Depth to the bottom of the root zone, as a weighted average of all components, with components having no rootzone restrictions within 200 cm being reset to 200 cm for this calculation. This is an experimental attribute and not currently recommended for decision making. A NoData value of 65535 may occur.There are 10339 map units with the NoData value.
Producer defined
0
200
cm
65535 NoData value
mu_depth_rootzone_999_cm
Depth to the bottom of the root zone, as a weighted average of all components, with components with no rootzone restrictions having the depth reset to 999 cm for this calculation. This is an experimental attribute and not currently recommended for decision making. A NoData value of 65535 may occur.There are 10339 map units with the NoData value.
Producer defined
0
999
cm
65535 NoData value
mu_sum_comppct_r_fix_depth_rootzone
Sum of component percentages contributing to the mu_depth_rootzone calculation. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 10394 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_depth_rootzone_150
Sum of component percentages contributing to the mu_depth_rootzone_150 calculation. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 10339 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_depth_rootzone_200
Sum of component percentages contributing to the mu_depth_rootzone_200 calculation. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 10339 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_depth_rootzone_999
Sum of component percentages contributing to the mu_depth_rootzone_999 calculation. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 10339 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
Volume of soil fines (mu_vol_lt2mm_) attributes
The volume of soil fines attributes (mu_vol_lt2mm_ by range_point by depth_zone) may be useful to understand the soil volume and therefore the quantity of soil available for plant growth, hydrologic function, or other environmental processes. In this group of attributes, there are 3 range_point cases (low: _l, representative value: _r, and high: _h). There are 8 depth_zone cases for each range_point case. Thus, there are 3 * 8 = 24 primary attributes in this group. Each attribute also has a mu_sum_comppct attribute, so there is a total of 24 + 24 = 48 attributes. Soil fines are the parts of the soil matrix with particle diameters less than 2 millimeters (lt2mm). The volume includes pore spaces. Particles larger than 2 mm (e.g., rocks) are excluded from this volume measure. The thickness of each horizon is determined from two horizon-level attributes: 'hzdept_r' is the depth to the top of the horizon and 'hzdepb_r' is the depth to the bottom of the horizon, with '_r' indicating that these are representative values. All depths or thicknesses presented here are in centimeters (cm). The volume of soil for various fractions (soil fines or coarse fragments) are not given directly in the database, because the fractions of coarse fragments are given as mass ratios. The volume calculations start with two mass ratio variables (frag3to10_r and fraggt10_r) and another variable representing the mass percentage that will pass a sieve with a 2 mm opening (sieveno10_r). The frag3to10_r is the mass ratio of fragments between 3 and 10 inches (75 to 250 mm) to the mass of the soil. The fraggt10_r the mass ratio of fragments greater than 10 inches to the mass of the soil. The sieveno10_r is the mass percentage of the soil fines (numerator, soil particles less than 2 mm diameter) to the soil mass less than 3 inches in diameter (denominator). If a horizon represents an organic soil (as determined by the texture label), then the rock fragment variables (fraggt10_r, frag3to10_r and sieveno10_r) may be reset to reflect zero rock fragments as long as the bulk density value is in a reasonable range (0.001 < dbthirdbar_r < 2.651). If any of these input variables have NoData, then the volume measure will be set to a NoData value. Although the total soil mass is not given by the data base, these values are used in a sequence of formulas to calculate the mass and volume of rocks and soil fines, making use of the particle density (for the rocks, assumed to be 2.65 g cm-3) and the bulk density (for the soil fines). Because there are possible inconsistencies in the input data (e.g., frag3to10_r plus fraggt10_r is greater than 1.0) the results are constrained so that the volume fractions for rocks and soil fines will be between 0 and 1. The volume ratios for rocks and soil fines are applied to the thickness of each horizon within a depth zone, to calculate the volume of rocks and soil fines in the depth zone. Units for these volume measures are given in cm, but are labeled and interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). By use of appropriate conversion factors (e.g., the number of square centimeters in a square kilometer) the units could be scaled to represent the soil volume for large land areas (e.g., the map unit). The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The companion variables, 'mu_sum_comppct_r_fix_vol_lt2mm_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_vol_lt2mm_ calculation.
Producer defined. See also Kellogg Soil Survey Laboratory Methods Manual, Soil Survey Investigations Report No. 42, Version 5.0, 2014 available from http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1253872.pdf and Soil Survey Investigations Report No. 45, Soil Survey Laboratory Information Manual, Version 2.0, February 2011, USDA, NRCS available from https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052226.pdf
mu_vol_lt2mm_l_cm3_cm2_000_005
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13763 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_l_cm3_cm2_005_015
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13317 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_l_cm3_cm2_015_030
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13663 map units with the NoData value.
Producer defined
0.0
15.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_l_cm3_cm2_030_060
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16020 map units with the NoData value.
Producer defined
0.0
30.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_l_cm3_cm2_060_100
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24322 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_l_cm3_cm2_100_200
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_l_cm3_cm2_000_999
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13141 map units with the NoData value.
Producer defined
0.0
429.027526855
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_l_cm3_cm2_rootzone
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23357 map units with the NoData value.
Producer defined
0.0
429.304229736
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_000_005
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13648 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_005_015
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13198 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_015_030
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13542 map units with the NoData value.
Producer defined
0.0
15.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_030_060
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15891 map units with the NoData value.
Producer defined
0.0
30.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_060_100
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24098 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_100_200
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43876 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_000_999
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13046 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_rootzone
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23326 map units with the NoData value.
Producer defined
0.45431920886
443.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_h_cm3_cm2_000_005
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13669 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_h_cm3_cm2_005_015
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13227 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_h_cm3_cm2_015_030
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13567 map units with the NoData value.
Producer defined
0.0
15.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_h_cm3_cm2_030_060
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15917 map units with the NoData value.
Producer defined
0.0
30.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_h_cm3_cm2_060_100
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24128 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_h_cm3_cm2_100_200
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43911 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_h_cm3_cm2_000_999
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13059 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_h_cm3_cm2_rootzone
Volume of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23335 map units with the NoData value.
Producer defined
0.499461501837
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_l_000_005
Sum of component percentages contributing to the mu_vol_lt2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13763 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_l_005_015
Sum of component percentages contributing to the mu_vol_lt2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13317 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_l_015_030
Sum of component percentages contributing to the mu_vol_lt2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13663 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_l_030_060
Sum of component percentages contributing to the mu_vol_lt2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16020 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_l_060_100
Sum of component percentages contributing to the mu_vol_lt2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24322 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_l_100_200
Sum of component percentages contributing to the mu_vol_lt2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_l_000_999
Sum of component percentages contributing to the mu_vol_lt2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13141 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_l_rootzone
Sum of component percentages contributing to the mu_vol_lt2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23357 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_r_000_005
Sum of component percentages contributing to the mu_vol_lt2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13648 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_r_005_015
Sum of component percentages contributing to the mu_vol_lt2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13198 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_r_015_030
Sum of component percentages contributing to the mu_vol_lt2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13542 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_r_030_060
Sum of component percentages contributing to the mu_vol_lt2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15891 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_r_060_100
Sum of component percentages contributing to the mu_vol_lt2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24098 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_r_100_200
Sum of component percentages contributing to the mu_vol_lt2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43876 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_r_000_999
Sum of component percentages contributing to the mu_vol_lt2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13046 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_r_rootzone
Sum of component percentages contributing to the mu_vol_lt2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23326 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_h_000_005
Sum of component percentages contributing to the mu_vol_lt2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13669 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_h_005_015
Sum of component percentages contributing to the mu_vol_lt2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13227 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_h_015_030
Sum of component percentages contributing to the mu_vol_lt2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13567 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_h_030_060
Sum of component percentages contributing to the mu_vol_lt2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15917 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_h_060_100
Sum of component percentages contributing to the mu_vol_lt2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24128 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_h_100_200
Sum of component percentages contributing to the mu_vol_lt2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43911 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_h_000_999
Sum of component percentages contributing to the mu_vol_lt2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13059 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_lt2mm_h_rootzone
Sum of component percentages contributing to the mu_vol_lt2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23335 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
Mass of soil fines (mu_mass_lt2mm_) attributes
The mass of soil fines attributes (mu_mass_lt2mm_ by range_point by depth_zone) may be useful to understand the soil mass and therefore the quantity of soil available for plant growth, hydrologic function, or other environmental processes. In this group of attributes, there is a variation on the usual 3 range_point cases (low: _l, representative value: _r, and high: _h). These mass variables are used in calculations of the gravel content variables (mass ratio or volume ratio) and in the bulk density calculations (e.g., dbthirdbar for soil fines (lt2mm) and whole soil). It seemed appropriate to only have one factor varying at a time for calculating the 'low' and 'high' values of these gravel and bulk densitiy variables. Therefore, two groups of variables for the mass of soil fines variables are defined here. The first group is intended for the bulk density calculations and allows the bulk density to vary (_l, _r, and _h) and keeps the volume of soil fines constant at the representative value (based on the volume and thus the mass of rocks, as derived from the representative values (_r) of the fragment and sieve data). The variables in this first group are labeled with 'mu_mass_lt2mm_ldb_rvol_', 'mu_mass_lt2mm_rdb_rvol_', and 'mu_mass_lt2mm_hdb_rvol_', indicating that the bulk density varies (ldb, rdb, hdb) and the volume is constant (rvol). The second group of variables is intended for the gravel calculations, and keeps the bulk density of soil fines constant (rdb) and allows the rock content to vary based on the fragment and sieve data. The variables in this second group are labeled with 'mu_mass_lt2mm_rdb_lvol_' and 'mu_mass_lt2mm_rdb_hvol_'. The variables for the representative value case 'mu_mass_lt2mm_rdb_rvol_' are the same for both methods, and are not repeated. Thus, there are 5 cases for computing low, representative, and high values. There are 8 depth_zone cases for each case. Thus, there are 5 * 8 = 40 attributes in this group. Each attribute also has a mu_sum_comppct attribute, so there is a total of 40 + 40 = 80 attributes. Soil fines are the parts of the soil matrix with particle diameters less than 2 millimeters (lt2mm). Particles larger than 2 mm (e.g., rocks) are excluded from this mass measure. The thickness of each horizon is determined from two horizon-level attributes: 'hzdept_r' is the depth to the top of the horizon and 'hzdepb_r' is the depth to the bottom of the horizon, with '_r' indicating that these are representative values. All depths or thicknesses presented here are in centimeters (cm). The mass of soil for various fractions (soil fines or coarse fragments) are not given directly in the database, because the fractions of coarse fragments are given as mass ratios. The mass calculations for the representative value case 'mu_mass_lt2mm_rdb_rvol_' starts with two mass ratio variables (frag3to10_r and fraggt10_r) and another variable representing the mass percentage that will pass a sieve with a 2 mm opening (sieveno10_r). The frag3to10_r is the mass ratio of fragments between 3 and 10 inches (75 to 250 mm) to the mass of the soil. The fraggt10_r the mass ratio of fragments greater than 10 inches to the mass of the soil. The sieveno10_r is the mass percentage of the soil fines (numerator, soil particles less than 2 mm diameter) to the soil mass less than 3 inches in diameter (denominator). If a horizon represents an organic soil (as determined by the texture label), then the rock fragment variables (fraggt10_r, frag3to10_r and sieveno10_r) may be reset to reflect zero rock fragments as long as the bulk density value is in a reasonable range (0.001 < dbthirdbar_r < 2.651). If any of these input variables have NoData, then the mass measure will be set to a NoData value. Although the total soil mass is not given by the data base, these values are used in a sequence of formulas to calculate the mass and volume of rocks and soil fines, making use of the particle density (for the rocks, assumed to be 2.65 g cm-3) and the bulk density (for the soil fines). Because there are possible inconsistencies in the input data (e.g., frag3to10_r plus fraggt10_r is greater than 1.0) the results are constrained so that the volume fractions for rocks and soil fines will be between 0 and 1. To compute the low range_point for the mass of rocks ('mu_mass_lt2mm_rdb_lvol_') for use in the gravel calculations, the low mass of rocks is indicated by the low values of fragments (frag3to10_l and fraggt10_l) and a high percentage passing the sieve (sieveno10_h). Conversely, calculations of the high range_point for the mass of rocks ('mu_mass_lt2mm_rdb_hvol_') use the high mass of rocks as indicated by the high values of fragments (frag3to10_h and fraggt10_h) and a low percentage passing the sieve (sieveno10_l). Units for these mass measures are given in grams (g), but are labeled and interpreted as grams of soil mass per square centimeter of land surface area (g_cm2). By use of appropriate conversion factors (e.g., the number of square centimeters in a square kilometer) the units could be scaled to represent the soil mass for large land areas (e.g., the map unit). The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The companion variables, 'mu_sum_comppct_r_fix_mass_lt2mm_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_mass_lt2mm_ calculation.
Producer defined
mu_mass_lt2mm_ldb_rvol_g_cm2_000_005
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14297 map units with the NoData value.
Producer defined
0.0
8.91363620758
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_ldb_rvol_g_cm2_005_015
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13722 map units with the NoData value.
Producer defined
0.0
17.8272724152
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_ldb_rvol_g_cm2_015_030
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14064 map units with the NoData value.
Producer defined
0.0
27.2542285919
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_ldb_rvol_g_cm2_030_060
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16403 map units with the NoData value.
Producer defined
0.0
54.5084571838
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_ldb_rvol_g_cm2_060_100
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24607 map units with the NoData value.
Producer defined
0.0
72.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_ldb_rvol_g_cm2_100_200
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44370 map units with the NoData value.
Producer defined
0.0
180.656692505
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_ldb_rvol_g_cm2_000_999
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13443 map units with the NoData value.
Producer defined
0.0
677.115722656
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_ldb_rvol_g_cm2_rootzone
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23765 map units with the NoData value.
Producer defined
0.0497196465731
644.947387695
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_rvol_g_cm2_000_005
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13648 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_rvol_g_cm2_005_015
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13198 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_rvol_g_cm2_015_030
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13542 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_rvol_g_cm2_030_060
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15891 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_rvol_g_cm2_060_100
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24098 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_rvol_g_cm2_100_200
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43876 map units with the NoData value.
Producer defined
0.0
191.279998779
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_rvol_g_cm2_000_999
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13046 map units with the NoData value.
Producer defined
0.0
716.860046387
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_rvol_g_cm2_rootzone
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23326 map units with the NoData value.
Producer defined
0.0994392931461
687.634765625
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_hdb_rvol_g_cm2_000_005
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14296 map units with the NoData value.
Producer defined
0.0
11.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_hdb_rvol_g_cm2_005_015
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13719 map units with the NoData value.
Producer defined
0.0
22.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_hdb_rvol_g_cm2_015_030
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14061 map units with the NoData value.
Producer defined
0.0
33.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_hdb_rvol_g_cm2_030_060
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16399 map units with the NoData value.
Producer defined
0.0
66.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_hdb_rvol_g_cm2_060_100
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24597 map units with the NoData value.
Producer defined
0.0
97.3321990967
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_hdb_rvol_g_cm2_100_200
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44374 map units with the NoData value.
Producer defined
0.0
245.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_hdb_rvol_g_cm2_000_999
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13448 map units with the NoData value.
Producer defined
0.0
750.053894043
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_hdb_rvol_g_cm2_rootzone
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23770 map units with the NoData value.
Producer defined
0.198878586292
731.690185547
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_lvol_g_cm2_000_005
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13763 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_lvol_g_cm2_005_015
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13317 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_lvol_g_cm2_015_030
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13663 map units with the NoData value.
Producer defined
0.0
28.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_lvol_g_cm2_030_060
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16020 map units with the NoData value.
Producer defined
0.0
57.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_lvol_g_cm2_060_100
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24322 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_lvol_g_cm2_100_200
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
0.0
191.279998779
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_lvol_g_cm2_000_999
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13141 map units with the NoData value.
Producer defined
0.0
684.15838623
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_lvol_g_cm2_rootzone
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23357 map units with the NoData value.
Producer defined
0.0
664.814453125
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_hvol_g_cm2_000_005
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13669 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_hvol_g_cm2_005_015
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13227 map units with the NoData value.
Producer defined
0.0
19.1499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_hvol_g_cm2_015_030
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13567 map units with the NoData value.
Producer defined
0.0
28.9499988556
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_hvol_g_cm2_030_060
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15917 map units with the NoData value.
Producer defined
0.0
59.4000015259
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_hvol_g_cm2_060_100
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24128 map units with the NoData value.
Producer defined
0.0
79.1999969482
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_hvol_g_cm2_100_200
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43911 map units with the NoData value.
Producer defined
0.0
200.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_hvol_g_cm2_000_999
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13059 map units with the NoData value.
Producer defined
0.0
729.980041504
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_rdb_hvol_g_cm2_rootzone
Mass of soil fines (less than 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23335 map units with the NoData value.
Producer defined
0.0999618992209
732.58001709
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_ldb_rvol_000_005
Sum of component percentages contributing to the mu_mass_lt2mm_ldb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14297 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_ldb_rvol_005_015
Sum of component percentages contributing to the mu_mass_lt2mm_ldb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13722 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_ldb_rvol_015_030
Sum of component percentages contributing to the mu_mass_lt2mm_ldb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14064 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_ldb_rvol_030_060
Sum of component percentages contributing to the mu_mass_lt2mm_ldb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16403 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_ldb_rvol_060_100
Sum of component percentages contributing to the mu_mass_lt2mm_ldb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24607 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_ldb_rvol_100_200
Sum of component percentages contributing to the mu_mass_lt2mm_ldb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44370 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_ldb_rvol_000_999
Sum of component percentages contributing to the mu_mass_lt2mm_ldb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13443 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_ldb_rvol_rootzone
Sum of component percentages contributing to the mu_mass_lt2mm_ldb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23765 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_rvol_000_005
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13648 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_rvol_005_015
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13198 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_rvol_015_030
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13542 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_rvol_030_060
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15891 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_rvol_060_100
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24098 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_rvol_100_200
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43876 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_rvol_000_999
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13046 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_rvol_rootzone
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23326 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_hdb_rvol_000_005
Sum of component percentages contributing to the mu_mass_lt2mm_hdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14296 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_hdb_rvol_005_015
Sum of component percentages contributing to the mu_mass_lt2mm_hdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13719 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_hdb_rvol_015_030
Sum of component percentages contributing to the mu_mass_lt2mm_hdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14061 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_hdb_rvol_030_060
Sum of component percentages contributing to the mu_mass_lt2mm_hdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16399 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_hdb_rvol_060_100
Sum of component percentages contributing to the mu_mass_lt2mm_hdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24597 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_hdb_rvol_100_200
Sum of component percentages contributing to the mu_mass_lt2mm_hdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44374 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_hdb_rvol_000_999
Sum of component percentages contributing to the mu_mass_lt2mm_hdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13448 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_hdb_rvol_rootzone
Sum of component percentages contributing to the mu_mass_lt2mm_hdb_rvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23770 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_lvol_000_005
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_lvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13763 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_lvol_005_015
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_lvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13317 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_lvol_015_030
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_lvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13663 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_lvol_030_060
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_lvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16020 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_lvol_060_100
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_lvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24322 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_lvol_100_200
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_lvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_lvol_000_999
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_lvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13141 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_lvol_rootzone
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_lvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23357 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_hvol_000_005
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_hvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13669 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_hvol_005_015
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_hvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13227 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_hvol_015_030
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_hvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13567 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_hvol_030_060
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_hvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15917 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_hvol_060_100
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_hvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24128 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_hvol_100_200
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_hvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43911 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_hvol_000_999
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_hvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13059 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_lt2mm_rdb_hvol_rootzone
Sum of component percentages contributing to the mu_mass_lt2mm_rdb_hvol_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23335 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
Volume of coarse fragments (mu_vol_ge2mm_) attributes
In this group of attributes, there are 3 range_point cases (low: _l, representative value: _r, and high: _h). There are 8 depth_zone cases for each range_point case. Thus, there are 3 * 8 = 24 primary attributes in this group. Each attribute also has a mu_sum_comppct attribute, so there is a total of 24 + 24 = 48 attributes. Coarse fragments (rocks) are the parts of the soil matrix with particle diameters greater than or equal to 2 millimeters (ge2mm). Particles smaller than 2 mm and pore spaces are excluded from this volume measure. The volume of coarse fragments attributes (mu_vol_ge2mm_ by range_point by depth_zone) may be useful to understand the volume of rocks, and therefore some uses or limitations of soil for plant growth, hydrologic function, or other environmental processes. The thickness of each horizon is determined from two horizon-level attributes: 'hzdept_r' is the depth to the top of the horizon and 'hzdepb_r' is the depth to the bottom of the horizon, with '_r' indicating that these are representative values. All depths or thicknesses presented here are in centimeters (cm). The volume of soil for various fractions (soil fines or coarse fragments) are not given directly in the database, because the fractions of coarse fragments are given as mass ratios. The volume calculations start with two mass ratio variables (frag3to10_r and fraggt10_r) and another variable representing the mass percentage that will pass a sieve with a 2 mm opening (sieveno10_r). The frag3to10_r is the mass ratio of fragments between 3 and 10 inches (75 to 250 mm) to the mass of the soil. The fraggt10_r the mass ratio of fragments greater than 10 inches to the mass of the soil. The sieveno10_r is the mass percentage of the soil fines (numerator, soil particles less than 2 mm diameter) to the soil mass less than 3 inches in diameter (denominator). If a horizon represents an organic soil (as determined by the texture label), then the rock fragment variables (fraggt10_r, frag3to10_r and sieveno10_r) may be reset to reflect zero rock fragments as long as the bulk density value is in a reasonable range (0.001 < dbthirdbar_r < 2.651). If any of these input variables have NoData, then the volume measure will be set to a NoData value. Although the total soil mass is not given by the data base, these values are used in a sequence of formulas to calculate the mass and volume of rocks and soil fines, making use of the particle density (for the rocks, assumed to be 2.65 g cm-3) and the bulk density (for the soil fines). Because there are possible inconsistencies in the input data (e.g., frag3to10_r plus fraggt10_r is greater than 1.0) the results are constrained so that the volume fractions for rocks and soil fines will be between 0 and 1. The volume ratios for rocks and soil fines are applied to the thickness of each horizon within a depth zone, to calculate the volume of rocks and soil fines in the depth zone. Units for these volume measures are given in cm, but are labeled and interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). By use of appropriate conversion factors (e.g., the number of square centimeters in a square kilometer) the units could be scaled to represent the volume of coarse fragments for large land areas (e.g., the map unit). The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The companion variables, 'mu_sum_comppct_r_fix_vol_ge2mm_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_vol_ge2mm_ calculation.
Producer defined
mu_vol_ge2mm_l_cm3_cm2_000_005
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13669 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_l_cm3_cm2_005_015
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13227 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_l_cm3_cm2_015_030
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13567 map units with the NoData value.
Producer defined
0.0
15.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_l_cm3_cm2_030_060
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15917 map units with the NoData value.
Producer defined
0.0
30.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_l_cm3_cm2_060_100
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24128 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_l_cm3_cm2_100_200
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43911 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_l_cm3_cm2_000_999
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13059 map units with the NoData value.
Producer defined
0.0
203.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_l_cm3_cm2_rootzone
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23335 map units with the NoData value.
Producer defined
0.0
129.349533081
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_r_cm3_cm2_000_005
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13648 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_r_cm3_cm2_005_015
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13198 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_r_cm3_cm2_015_030
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13542 map units with the NoData value.
Producer defined
0.0
15.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_r_cm3_cm2_030_060
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15891 map units with the NoData value.
Producer defined
0.0
30.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_r_cm3_cm2_060_100
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24098 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_r_cm3_cm2_100_200
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43876 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_r_cm3_cm2_000_999
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13046 map units with the NoData value.
Producer defined
0.0
243.795730591
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_r_cm3_cm2_rootzone
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23326 map units with the NoData value.
Producer defined
0.0
144.559906006
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_h_cm3_cm2_000_005
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13763 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_h_cm3_cm2_005_015
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13317 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_h_cm3_cm2_015_030
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13663 map units with the NoData value.
Producer defined
0.0
15.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_h_cm3_cm2_030_060
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16020 map units with the NoData value.
Producer defined
0.0
30.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_h_cm3_cm2_060_100
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24322 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_h_cm3_cm2_100_200
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_h_cm3_cm2_000_999
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13141 map units with the NoData value.
Producer defined
0.0
326.005493164
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_ge2mm_h_cm3_cm2_rootzone
Volume of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23357 map units with the NoData value.
Producer defined
0.0
241.60723877
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_l_000_005
Sum of component percentages contributing to the mu_vol_ge2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13669 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_l_005_015
Sum of component percentages contributing to the mu_vol_ge2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13227 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_l_015_030
Sum of component percentages contributing to the mu_vol_ge2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13567 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_l_030_060
Sum of component percentages contributing to the mu_vol_ge2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15917 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_l_060_100
Sum of component percentages contributing to the mu_vol_ge2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24128 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_l_100_200
Sum of component percentages contributing to the mu_vol_ge2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43911 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_l_000_999
Sum of component percentages contributing to the mu_vol_ge2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13059 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_l_rootzone
Sum of component percentages contributing to the mu_vol_ge2mm_l_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23335 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_r_000_005
Sum of component percentages contributing to the mu_vol_ge2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13648 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_r_005_015
Sum of component percentages contributing to the mu_vol_ge2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13198 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_r_015_030
Sum of component percentages contributing to the mu_vol_ge2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13542 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_r_030_060
Sum of component percentages contributing to the mu_vol_ge2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15891 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_r_060_100
Sum of component percentages contributing to the mu_vol_ge2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24098 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_r_100_200
Sum of component percentages contributing to the mu_vol_ge2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43876 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_r_000_999
Sum of component percentages contributing to the mu_vol_ge2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13046 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_r_rootzone
Sum of component percentages contributing to the mu_vol_ge2mm_r_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23326 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_h_000_005
Sum of component percentages contributing to the mu_vol_ge2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13763 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_h_005_015
Sum of component percentages contributing to the mu_vol_ge2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13317 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_h_015_030
Sum of component percentages contributing to the mu_vol_ge2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13663 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_h_030_060
Sum of component percentages contributing to the mu_vol_ge2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16020 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_h_060_100
Sum of component percentages contributing to the mu_vol_ge2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24322 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_h_100_200
Sum of component percentages contributing to the mu_vol_ge2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_h_000_999
Sum of component percentages contributing to the mu_vol_ge2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13141 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_vol_ge2mm_h_rootzone
Sum of component percentages contributing to the mu_vol_ge2mm_h_cm3_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23357 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
Mass of coarse fragments (mu_mass_ge2mm_) attributes
In this group of attributes, there are 3 range_point cases (low: _l, representative value: _r, and high: _h). There are 8 depth_zone cases for each range_point case. Thus, there are 3 * 8 = 24 primary attributes in this group. Each attribute also has a mu_sum_comppct attribute, so there is a total of 24 + 24 = 48 attributes. Coarse fragments (rocks) are the parts of the soil matrix with particle diameters greater than or equal to 2 millimeters (ge2mm). Particles smaller than 2 mm and pore spaces are excluded from this mass measure. The mass of coarse fragments attributes (mu_mass_ge2mm_ by range_point by depth_zone) may be useful to understand the mass of rocks and therefore processes or limitations affecting plant growth, hydrologic function, or other environmental processes. The thickness of each horizon is determined from two horizon-level attributes: 'hzdept_r' is the depth to the top of the horizon and 'hzdepb_r' is the depth to the bottom of the horizon, with '_r' indicating that these are representative values. All depths or thicknesses presented here are in centimeters (cm). The mass of soil for various fractions (soil fines or coarse fragments) are not given directly in the database, because the fractions of coarse fragments are given as mass ratios. The mass calculations start with two mass ratio variables (frag3to10_r and fraggt10_r) and another variable representing the mass percentage that will pass a sieve with a 2 mm opening (sieveno10_r). The frag3to10_r is the mass ratio of fragments between 3 and 10 inches (75 to 250 mm) to the mass of the soil. The fraggt10_r the mass ratio of fragments greater than 10 inches to the mass of the soil. The sieveno10_r is the mass percentage of the soil fines (numerator, soil particles less than 2 mm diameter) to the soil mass less than 3 inches in diameter (denominator). If a horizon represents an organic soil (as determined by the texture label), then the rock fragment variables (fraggt10_r, frag3to10_r and sieveno10_r) may be reset to reflect zero rock fragments as long as the bulk density value is in a reasonable range (0.001 < dbthirdbar_r < 2.651). If any of these input variables have NoData, then the mass measure will be set to a NoData value. Although the total soil mass is not given by the data base, these values are used in a sequence of formulas to calculate the mass and volume of rocks and soil fines, making use of the particle density (for the rocks, assumed to be 2.65 g cm-3) and the bulk density (for the soil fines). Because there are possible inconsistencies in the input data (e.g., frag3to10_r plus fraggt10_r is greater than 1.0) the results are constrained so that the volume fractions for rocks and soil fines will be between 0 and 1. Units for these mass measures are given in grams (g), but are labeled and interpreted as grams of soil mass per square centimeter of land surface area (g_cm2). By use of appropriate conversion factors (e.g., the number of square centimeters in a square kilometer) the units could be scaled to represent the rock mass for large land areas (e.g., the map unit). The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The companion variables, 'mu_sum_comppct_r_fix_vol_ge2mm_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_vol_ge2mm_ calculation.
Producer defined
mu_mass_ge2mm_l_g_cm2_000_005
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13669 map units with the NoData value.
Producer defined
0.0
13.25
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_l_g_cm2_005_015
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13227 map units with the NoData value.
Producer defined
0.0
26.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_l_g_cm2_015_030
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13567 map units with the NoData value.
Producer defined
0.0
39.75
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_l_g_cm2_030_060
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15917 map units with the NoData value.
Producer defined
0.0
79.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_l_g_cm2_060_100
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24128 map units with the NoData value.
Producer defined
0.0
106.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_l_g_cm2_100_200
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43911 map units with the NoData value.
Producer defined
0.0
265.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_l_g_cm2_000_999
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13059 map units with the NoData value.
Producer defined
0.0
537.950012207
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_l_g_cm2_rootzone
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23335 map units with the NoData value.
Producer defined
0.0
342.776245117
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_r_g_cm2_000_005
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13648 map units with the NoData value.
Producer defined
0.0
13.25
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_r_g_cm2_005_015
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13198 map units with the NoData value.
Producer defined
0.0
26.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_r_g_cm2_015_030
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13542 map units with the NoData value.
Producer defined
0.0
39.75
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_r_g_cm2_030_060
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15891 map units with the NoData value.
Producer defined
0.0
79.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_r_g_cm2_060_100
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24098 map units with the NoData value.
Producer defined
0.0
106.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_r_g_cm2_100_200
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43876 map units with the NoData value.
Producer defined
0.0
265.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_r_g_cm2_000_999
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13046 map units with the NoData value.
Producer defined
0.0
646.05871582
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_r_g_cm2_rootzone
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23326 map units with the NoData value.
Producer defined
0.0
383.083740234
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_h_g_cm2_000_005
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13763 map units with the NoData value.
Producer defined
0.0
13.25
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_h_g_cm2_005_015
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13317 map units with the NoData value.
Producer defined
0.0
26.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_h_g_cm2_015_030
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13663 map units with the NoData value.
Producer defined
0.0
39.75
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_h_g_cm2_030_060
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16020 map units with the NoData value.
Producer defined
0.0
79.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_h_g_cm2_060_100
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24322 map units with the NoData value.
Producer defined
0.0
106.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_h_g_cm2_100_200
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
0.0
265.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_h_g_cm2_000_999
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13141 map units with the NoData value.
Producer defined
0.0
863.914611816
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_ge2mm_h_g_cm2_rootzone
Mass of coarse fragments (greater than or equal to 2 mm particle diameter), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23357 map units with the NoData value.
Producer defined
0.0
640.259155273
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_l_000_005
Sum of component percentages contributing to the mu_mass_ge2mm_l_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13669 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_l_005_015
Sum of component percentages contributing to the mu_mass_ge2mm_l_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13227 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_l_015_030
Sum of component percentages contributing to the mu_mass_ge2mm_l_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13567 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_l_030_060
Sum of component percentages contributing to the mu_mass_ge2mm_l_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15917 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_l_060_100
Sum of component percentages contributing to the mu_mass_ge2mm_l_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24128 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_l_100_200
Sum of component percentages contributing to the mu_mass_ge2mm_l_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43911 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_l_000_999
Sum of component percentages contributing to the mu_mass_ge2mm_l_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13059 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_l_rootzone
Sum of component percentages contributing to the mu_mass_ge2mm_l_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23335 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_r_000_005
Sum of component percentages contributing to the mu_mass_ge2mm_r_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13648 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_r_005_015
Sum of component percentages contributing to the mu_mass_ge2mm_r_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13198 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_r_015_030
Sum of component percentages contributing to the mu_mass_ge2mm_r_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13542 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_r_030_060
Sum of component percentages contributing to the mu_mass_ge2mm_r_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15891 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_r_060_100
Sum of component percentages contributing to the mu_mass_ge2mm_r_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24098 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_r_100_200
Sum of component percentages contributing to the mu_mass_ge2mm_r_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 43876 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_r_000_999
Sum of component percentages contributing to the mu_mass_ge2mm_r_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13046 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_r_rootzone
Sum of component percentages contributing to the mu_mass_ge2mm_r_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23326 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_h_000_005
Sum of component percentages contributing to the mu_mass_ge2mm_h_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13763 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_h_005_015
Sum of component percentages contributing to the mu_mass_ge2mm_h_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13317 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_h_015_030
Sum of component percentages contributing to the mu_mass_ge2mm_h_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13663 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_h_030_060
Sum of component percentages contributing to the mu_mass_ge2mm_h_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16020 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_h_060_100
Sum of component percentages contributing to the mu_mass_ge2mm_h_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24322 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_h_100_200
Sum of component percentages contributing to the mu_mass_ge2mm_h_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_h_000_999
Sum of component percentages contributing to the mu_mass_ge2mm_h_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13141 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_mass_ge2mm_h_rootzone
Sum of component percentages contributing to the mu_mass_ge2mm_h_g_cm2_ calculations for this depth zone. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23357 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
Avaliable water storage (mu_aws_) attributes
The available water storage (AWS) is the volume of soil water that can be stored in the depth zone and that would be available for plant growth. It may be useful for understanding plant growth, hydrologic function, or other environmental processes. In this group of attributes, there are 3 range_point cases (low: _l, representative value: _r, and high: _h). There are two principal variables: an intermediate calculation of the thickness (mu_thick_cm3_cm2_aws_) and the primary AWS variable (mu_aws_) for each of the 8 depth_zone cases, as well as a sum_comppct_ variable, for a total of 2 * 8 + 1 = 17 attributes for each range_point case. Thus, there are 3 * 17 = 51 attributes in this group. The AWS attribute is derived from the 'Available Water Capacity' (AWC) measure given on the chorizon table in the SSURGO and STATSGO2 databases. The units of AWC are given as cm/cm, representing the volume of water that the soil could store that would be available for plant growth as a fraction of the volume of whole soil (including soil fines and rocks). Multiplying by the thickness of the horizon converts these units to cm of water, and multiplying by 10 converts the units to millimeters (mm) of water. The expression of a volume of water with linear units is analogous to the measurement of precipitation in millimeters, where the surface area is implicit. With these conversions and change of units, the name 'Available Water Storage' (AWS) is used here. The AWC is computed in the soil laboratory using the 'water retention difference' which is typically the difference between the water content at 33 kPa soil water tension (conceptually, the 'Field Capacity') and the water content at 1500 kPa soil water tension (conceptually, the 'Permanent Wilting Point'). The rock volume has been considered in computing the value on the chorizon table. The component-level calculations are done for each depth zone. For each horizon in a component, the thickness of the horizon in the depth zone is multiplied by the awc_r and the results are summed and the units are adjusted to give a total for the depth zone. The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The thickness variables (mu_thick_cm3_cm2_aws_) give the thickness of the soil with AWC data in the depth zone, where values less than the thickness of the depth zone would usually indicate bedrock or missing data. Units for these thickness measures are given in cm, but are labeled and may be interpreted as a measure of soil volume: cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The companion variable, 'mu_sum_comppct_r_fix_aws_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_aws_ calculation.
SSURGO Metadata - Tables and Columns Report and SSURGO Metadata - Table Column Descriptions Report and SSURGO Metadata - Domains Report available from http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053631 and National Soil Survey Handbook part 618.6: https://directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=41981.wba and Kellogg Soil Survey Laboratory Methods Manual, Soil Survey Investigations Report No. 42, Version 5.0, 2014 available from http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1253872.pdf and Soil Survey Investigations Report No. 45, Soil Survey Laboratory Information Manual, Version 2.0, February 2011, USDA, NRCS available from https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052226.pdf
mu_thick_cm3_cm2_aws_l_000_005
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12598 map units with the NoData value.
Producer defined
0.0399999991059
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_l_005_015
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12091 map units with the NoData value.
Producer defined
0.10000000149
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_l_015_030
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12409 map units with the NoData value.
Producer defined
0.0599999986589
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_l_030_060
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14582 map units with the NoData value.
Producer defined
0.0599999986589
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_l_060_100
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22370 map units with the NoData value.
Producer defined
0.019999999553
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_l_100_200
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 41684 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_l_000_999
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12046 map units with the NoData value.
Producer defined
0.75
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_l_rootzone
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22480 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_l_mm_000_005
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12598 map units with the NoData value.
Producer defined
0.0
27.5
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_l_mm_005_015
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12091 map units with the NoData value.
Producer defined
0.0
55.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_l_mm_015_030
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12409 map units with the NoData value.
Producer defined
0.0
82.5
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_l_mm_030_060
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14582 map units with the NoData value.
Producer defined
0.0
165.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_l_mm_060_100
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22370 map units with the NoData value.
Producer defined
0.0
220.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_l_mm_100_200
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 41684 map units with the NoData value.
Producer defined
0.0
497.999992371
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_l_mm_000_999
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12046 map units with the NoData value.
Producer defined
0.0
1225.31997681
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_l_mm_rootzone
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22480 map units with the NoData value.
Producer defined
0.0
1040.50003052
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_aws_l
Sum of component percentages contributing to the mu_aws_l_mm calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 12046 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_r_000_005
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12571 map units with the NoData value.
Producer defined
0.0399999991059
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_r_005_015
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12074 map units with the NoData value.
Producer defined
0.10000000149
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_r_015_030
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12394 map units with the NoData value.
Producer defined
0.0599999986589
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_r_030_060
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14565 map units with the NoData value.
Producer defined
0.0599999986589
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_r_060_100
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22327 map units with the NoData value.
Producer defined
0.019999999553
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_r_100_200
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 41613 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_r_000_999
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12029 map units with the NoData value.
Producer defined
0.75
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_r_rootzone
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22463 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_r_mm_000_005
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12571 map units with the NoData value.
Producer defined
0.0
30.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_r_mm_005_015
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12074 map units with the NoData value.
Producer defined
0.0
60.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_r_mm_015_030
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12394 map units with the NoData value.
Producer defined
0.0
90.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_r_mm_030_060
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14565 map units with the NoData value.
Producer defined
0.0
180.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_r_mm_060_100
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22327 map units with the NoData value.
Producer defined
0.0
240.464000702
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_r_mm_100_200
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 41613 map units with the NoData value.
Producer defined
0.0
547.000045776
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_r_mm_000_999
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12029 map units with the NoData value.
Producer defined
0.0
1350.39001465
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_r_mm_rootzone
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22463 map units with the NoData value.
Producer defined
0.0
1142.00004578
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_aws_r
Sum of component percentages contributing to the mu_aws_r_mm calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 12029 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_h_000_005
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12580 map units with the NoData value.
Producer defined
0.0399999991059
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_h_005_015
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12081 map units with the NoData value.
Producer defined
0.10000000149
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_h_015_030
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12399 map units with the NoData value.
Producer defined
0.0599999986589
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_h_030_060
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14570 map units with the NoData value.
Producer defined
0.0599999986589
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_h_060_100
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22338 map units with the NoData value.
Producer defined
0.019999999553
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_h_100_200
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 41618 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_h_000_999
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12036 map units with the NoData value.
Producer defined
0.75
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_aws_h_rootzone
Thickness of soil in the depth zone used in the Available Water Storage (AWS) calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22469 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_h_mm_000_005
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12580 map units with the NoData value.
Producer defined
0.0
35.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_h_mm_005_015
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12081 map units with the NoData value.
Producer defined
0.0
70.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_h_mm_015_030
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12399 map units with the NoData value.
Producer defined
0.0
105.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_h_mm_030_060
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14570 map units with the NoData value.
Producer defined
0.0
210.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_h_mm_060_100
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22338 map units with the NoData value.
Producer defined
0.0
280.0
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_h_mm_100_200
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 41618 map units with the NoData value.
Producer defined
0.0
628.087654114
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_h_mm_000_999
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 12036 map units with the NoData value.
Producer defined
0.0
1473.69995117
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_aws_h_mm_rootzone
Available water storage (mm), computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 22469 map units with the NoData value.
Producer defined
0.0
1276.07437134
mm
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_aws_h
Sum of component percentages contributing to the mu_aws_h_mm calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 12036 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
Sand fraction (mu_sandtotal_) attributes
In this group of attributes, there are 3 range_point cases (low: _l, representative value: _r, and high: _h). There are four principal variables: three intermediate variables for the calculation of the thickness (mu_thick_cm3_cm2_sandtotal_), the volume of soil fines (mu_vol_lt2mm_cm3_cm2_sandtotal_), and the mass of soil fines (mu_mass_lt2mm_g_cm2_sandtotal_), and the primary sand fraction variable (mu_sandtotal_) for each of the 8 depth_zone cases, as well as a sum_comppct_ variable, for a subtotal of 4 * 8 + 1 = 33 attributes for each range_point case. There are two additional range point cases (low of the low: _ll and high of the high: _hh) with just the principal variables, and no additional thickness, volume, mass, or sum_comppct variables, for a subtotal of 8 attributes (by depth zone) for each additional range point case. Thus, there are 3 * 33 + 2 * 8 = 115 attributes in this group. Only the sand fraction variables (mu_sandtotal_) are required by the GlobalSoilMap specifications. The fraction of sand is defined as the mass of sand particles divided by the mass of soil fines, expressed as a ratio between 0.0 and 1.0. Sand particles have diameters that are greater than 0.05 mm and less than 2.0 mm. The soil fines consist of all soil particles less than 2 mm diameter (sand, silt, and clay). The 'sandtotal' name is used because subdivisions of the sand particle size range are also defined. 'Particle size' is the effective diameter of a particle as measured by sedimentation, sieving, or micrometric methods. Particle sizes are expressed as classes with specific effective diameter class limits. The broad classes are clay, silt, and sand, ranging from the smaller to the larger of the less than 2 mm mineral soil fraction. It includes fragments of weathered or poorly consolidated fragments that disperse to particles less than 2 mm. The physical behavior of a soil is influenced by the size and percentage composition of the size classes. Particle size is important for most soil interpretations, for determination of soil hydrologic qualities, and for soil classification. The mass of soil fines is calculated by excluding the volume of rocks in a depth zone, and multiplying the volume of soil fines by the bulk density. The mass of sand is computed by multiplying the mass of soil fines by the fraction of sand (sand percentage / 100%). To summarize across horizons and components, the values for the mass of sand are summed by depth zone for each component, and weighted by the revised component percentage (comppct_r_fix) to compute a map unit summary. The values for the mass of soil fines are summed in the same way, and for each mapunit, the mass of sand is divided by the mass of soil fines to recompute a map unit level fraction of sand. The '_g_gF' in the attribute name indicates that fraction represents grams of sand (_g) per gram of soil fines (_gF). For these variables, there is no assurance that the fractions of sand, silt, and clay will sum to 1.0. This is in contrast to variables named with the prefix 'mu_sandtotal_r_g_kg_', which are adjusted to ensure that the proportions of sand, silt, and clay fully account for all soil fines. The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The thickness variables (mu_thick_cm3_cm2_sandtotal_) give the thickness of the soil horizons with sandtotal_r data in the depth zone, where values less than the thickness of the depth zone would usually indicate bedrock or missing data. Units for these thickness measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The volume variables (mu_vol_lt2mm_cm3_cm2_sandtotal_) give the volume of the soil fines that have sandtotal_ data in the depth zone, where values less than the thickness of the depth zone would usually indicate presence of rocks or bedrock or missing data. The volume of soil fines excludes the volume of rocks. Units for these volume measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The mass variables (mu_mass_lt2mm_g_cm2_sandtotal_) give the mass of soil fines with sandtotal_ data in the depth zone, which would exclude cases of bedrock or missing data. Units for these mass measures are given in grams (g), but are labeled and may be interpreted as a measure of soil mass per square centimeter of land surface area (g_cm2). The companion variable, 'mu_sum_comppct_r_fix_sandtotal_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_sandtotal_ calculation.
SSURGO Metadata - Tables and Columns Report and SSURGO Metadata - Table Column Descriptions Report and SSURGO Metadata - Domains Report available from http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053631 and National Soil Survey Handbook part 618.46: https://directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=41981.wba and Soil Survey Manual, Chapter 3: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/publication/?cid=nrcs142p2_054253 and Kellogg Soil Survey Laboratory Methods Manual, Soil Survey Investigations Report No. 42, Version 5.0, 2014 available from http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1253872.pdf and Soil Survey Investigations Report No. 45, Soil Survey Laboratory Information Manual, Version 2.0, February 2011, USDA, NRCS available from https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052226.pdf
mu_thick_cm3_cm2_sandtotal_l_000_005
Thickness of soil in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 200119 map units with the NoData value.
Producer defined
0.019999999553
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_l_005_015
Thickness of soil in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198622 map units with the NoData value.
Producer defined
0.019999999553
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_l_015_030
Thickness of soil in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 197568 map units with the NoData value.
Producer defined
0.0399999991059
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_l_030_060
Thickness of soil in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198026 map units with the NoData value.
Producer defined
0.00999999977648
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_l_060_100
Thickness of soil in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 199638 map units with the NoData value.
Producer defined
0.0299999993294
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_l_100_200
Thickness of soil in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 204803 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_l_000_999
Thickness of soil in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 194317 map units with the NoData value.
Producer defined
0.0399999991059
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_l_rootzone
Thickness of soil in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_l_000_005
Volume of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 200119 map units with the NoData value.
Producer defined
0.00361966900527
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_l_005_015
Volume of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198622 map units with the NoData value.
Producer defined
0.00723933801055
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_l_015_030
Volume of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 197568 map units with the NoData value.
Producer defined
0.00590200442821
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_l_030_060
Volume of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198026 map units with the NoData value.
Producer defined
0.00892793014646
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_l_060_100
Volume of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 199638 map units with the NoData value.
Producer defined
0.0130581371486
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_l_100_200
Volume of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 204803 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_l_000_999
Volume of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 194317 map units with the NoData value.
Producer defined
0.0168460272253
455.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_l_rootzone
Volume of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0299999993294
441.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_l_000_005
Mass of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 200119 map units with the NoData value.
Producer defined
0.00479999976233
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_l_005_015
Mass of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198622 map units with the NoData value.
Producer defined
0.0115829408169
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_l_015_030
Mass of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 197568 map units with the NoData value.
Producer defined
0.00826280657202
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_l_030_060
Mass of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198026 map units with the NoData value.
Producer defined
0.0120000001043
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_l_060_100
Mass of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 199638 map units with the NoData value.
Producer defined
0.0130581371486
76.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_l_100_200
Mass of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 204803 map units with the NoData value.
Producer defined
0.0111999996006
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_l_000_999
Mass of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 194317 map units with the NoData value.
Producer defined
0.00479999976233
714.196594238
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_l_rootzone
Mass of soil fines in the depth zone used in the sandtotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.00479999976233
680.493286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_l_g_gF_000_005
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 200119 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_l_g_gF_005_015
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198622 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_l_g_gF_015_030
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 197568 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_l_g_gF_030_060
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198026 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_l_g_gF_060_100
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 199638 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_l_g_gF_100_200
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 204803 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_l_g_gF_000_999
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 194317 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_l_g_gF_rootzone
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0
0.943000078201
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_sandtotal_l
Sum of component percentages contributing to the mu_sandtotal_l_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 194317 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_r_000_005
Thickness of soil in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14964 map units with the NoData value.
Producer defined
0.019999999553
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_r_005_015
Thickness of soil in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13933 map units with the NoData value.
Producer defined
0.019999999553
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_r_015_030
Thickness of soil in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14280 map units with the NoData value.
Producer defined
0.0299999993294
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_r_030_060
Thickness of soil in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16681 map units with the NoData value.
Producer defined
0.019999999553
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_r_060_100
Thickness of soil in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25021 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_r_100_200
Thickness of soil in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45164 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_r_000_999
Thickness of soil in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13439 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_r_rootzone
Thickness of soil in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23966 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_r_000_005
Volume of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14964 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_r_005_015
Volume of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13933 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_r_015_030
Volume of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14280 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_r_030_060
Volume of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16681 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_r_060_100
Volume of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25021 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_r_100_200
Volume of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45164 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_r_000_999
Volume of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13439 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_r_rootzone
Volume of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23966 map units with the NoData value.
Producer defined
0.0299999993294
443.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_r_000_005
Mass of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14964 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_r_005_015
Mass of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13933 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_r_015_030
Mass of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14280 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_r_030_060
Mass of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16681 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_r_060_100
Mass of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25021 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_r_100_200
Mass of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45164 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_r_000_999
Mass of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13439 map units with the NoData value.
Producer defined
0.0
716.860046387
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_r_rootzone
Mass of soil fines in the depth zone used in the sandtotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23966 map units with the NoData value.
Producer defined
0.0120000001043
680.993286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_r_g_gF_000_005
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14971 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_r_g_gF_005_015
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13939 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_r_g_gF_015_030
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14289 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_r_g_gF_030_060
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16690 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_r_g_gF_060_100
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25034 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_r_g_gF_100_200
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45174 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_r_g_gF_000_999
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13445 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_r_g_gF_rootzone
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23966 map units with the NoData value.
Producer defined
0.0
0.949000060558
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_sandtotal_r
Sum of component percentages contributing to the mu_sandtotal_r_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 13439 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_h_000_005
Thickness of soil in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 200323 map units with the NoData value.
Producer defined
0.019999999553
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_h_005_015
Thickness of soil in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198827 map units with the NoData value.
Producer defined
0.019999999553
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_h_015_030
Thickness of soil in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 197821 map units with the NoData value.
Producer defined
0.0399999991059
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_h_030_060
Thickness of soil in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198296 map units with the NoData value.
Producer defined
0.00999999977648
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_h_060_100
Thickness of soil in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 199903 map units with the NoData value.
Producer defined
0.0299999993294
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_h_100_200
Thickness of soil in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 205072 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_h_000_999
Thickness of soil in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 194555 map units with the NoData value.
Producer defined
0.0399999991059
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_sandtotal_h_rootzone
Thickness of soil in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_h_000_005
Volume of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 200323 map units with the NoData value.
Producer defined
0.00361966900527
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_h_005_015
Volume of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198827 map units with the NoData value.
Producer defined
0.00723933801055
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_h_015_030
Volume of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 197821 map units with the NoData value.
Producer defined
0.00590200442821
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_h_030_060
Volume of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198296 map units with the NoData value.
Producer defined
0.00892793014646
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_h_060_100
Volume of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 199903 map units with the NoData value.
Producer defined
0.0130581371486
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_h_100_200
Volume of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 205072 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_h_000_999
Volume of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 194555 map units with the NoData value.
Producer defined
0.0168460272253
455.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_sandtotal_h_rootzone
Volume of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0299999993294
441.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_h_000_005
Mass of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 200323 map units with the NoData value.
Producer defined
0.00479999976233
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_h_005_015
Mass of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198827 map units with the NoData value.
Producer defined
0.0115829408169
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_h_015_030
Mass of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 197821 map units with the NoData value.
Producer defined
0.00826280657202
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_h_030_060
Mass of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198296 map units with the NoData value.
Producer defined
0.0120000001043
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_h_060_100
Mass of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 199903 map units with the NoData value.
Producer defined
0.0130581371486
76.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_h_100_200
Mass of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 205072 map units with the NoData value.
Producer defined
0.0111999996006
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_h_000_999
Mass of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 194555 map units with the NoData value.
Producer defined
0.00479999976233
714.196594238
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_sandtotal_h_rootzone
Mass of soil fines in the depth zone used in the sandtotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.00479999976233
680.493286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_h_g_gF_000_005
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 200323 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_h_g_gF_005_015
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198827 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_h_g_gF_015_030
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 197821 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_h_g_gF_030_060
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198296 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_h_g_gF_060_100
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 199903 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_h_g_gF_100_200
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 205072 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_h_g_gF_000_999
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 194555 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_h_g_gF_rootzone
Fraction of sand mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_sandtotal_h
Sum of component percentages contributing to the mu_sandtotal_h_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 194555 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_ll_g_gF_000_005
Fraction of sand mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0
0.943000078201
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_ll_g_gF_005_015
Fraction of sand mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0
0.943000078201
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_ll_g_gF_015_030
Fraction of sand mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0
0.943000078201
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_ll_g_gF_030_060
Fraction of sand mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0
0.943000078201
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_ll_g_gF_060_100
Fraction of sand mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0
0.943000078201
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_ll_g_gF_100_200
Fraction of sand mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0
0.943000078201
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_ll_g_gF_000_999
Fraction of sand mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0
0.943000078201
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_ll_g_gF_rootzone
Fraction of sand mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198103 map units with the NoData value.
Producer defined
0.0
0.943000078201
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_hh_g_gF_000_005
Fraction of sand mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_hh_g_gF_005_015
Fraction of sand mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_hh_g_gF_015_030
Fraction of sand mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_hh_g_gF_030_060
Fraction of sand mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_hh_g_gF_060_100
Fraction of sand mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_hh_g_gF_100_200
Fraction of sand mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_hh_g_gF_000_999
Fraction of sand mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sandtotal_hh_g_gF_rootzone
Fraction of sand mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198328 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
Silt fraction (mu_silttotal_) attributes
In this group of attributes, there are 3 range_point cases (low: _l, representative value: _r, and high: _h). There are four principal variables: three intermediate variables for the calculation of the thickness (mu_thick_cm3_cm2_silttotal_), the volume of soil fines (mu_vol_lt2mm_cm3_cm2_silttotal_), and the mass of soil fines (mu_mass_lt2mm_g_cm2_silttotal_), and the primary silt fraction variable (mu_silttotal_) for each of the 8 depth_zone cases, as well as a sum_comppct_ variable, for a subtotal of 4 * 8 + 1 = 33 attributes for each range_point case. There are two additional range point cases (low of the low: _ll and high of the high: _hh) with just the principal variables, and no additional thickness, volume, mass, or sum_comppct variables, for a subtotal of 8 attributes (by depth zone) for each additional range point case. Thus, there are 3 * 33 + 2 * 8 = 115 attributes in this group. Only the silt fraction variables (mu_silttotal_) are required by the GlobalSoilMap specifications. The fraction of silt is defined as the mass of silt particles divided by the mass of soil fines, expressed as a ratio between 0.0 and 1.0. Silt particles have diameters that are greater than 0.002 mm and less than 0.05 mm. The soil fines consist of all soil particles less than 2 mm diameter (sand, silt, and clay). The 'silttotal' name is used because subdivisions of the silt particle size range are also defined. 'Particle size' is the effective diameter of a particle as measured by sedimentation, sieving, or micrometric methods. Particle sizes are expressed as classes with specific effective diameter class limits. The broad classes are clay, silt, and sand, ranging from the smaller to the larger of the less than 2 mm mineral soil fraction. It includes fragments of weathered or poorly consolidated fragments that disperse to particles less than 2 mm. The physical behavior of a soil is influenced by the size and percentage composition of the size classes. Particle size is important for most soil interpretations, for determination of soil hydrologic qualities, and for soil classification. The mass of soil fines is calculated by excluding the volume of rocks in a depth zone, and multiplying the volume of soil fines by the bulk density. The mass of silt is computed by multiplying the mass of soil fines by the fraction of silt (silt percentage / 100%). To summarize across horizons and components, the values for the mass of silt are summed by depth zone for each component, and weighted by the revised component percentage (comppct_r_fix) to compute a map unit summary. The values for the mass of soil fines are summed in the same way, and for each mapunit, the mass of silt is divided by the mass of soil fines to recompute a map unit level fraction of silt. The '_g_gF' in the attribute name indicates that fraction represents grams of silt (_g) per gram of soil fines (_gF). For these variables, there is no assurance that the fractions of sand, silt, and clay will sum to 1.0. This is in contrast to variables named with the prefix 'mu_silttotal_r_g_kg_', which are adjusted to ensure that the proportions of sand, silt, and clay fully account for all soil fines. The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The thickness variables (mu_thick_cm3_cm2_silttotal_) give the thickness of the soil horizons with silttotal_r data in the depth zone, where values less than the thickness of the depth zone would usually indicate bedrock or missing data. Units for these thickness measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The volume variables (mu_vol_lt2mm_cm3_cm2_silttotal_) give the volume of the soil fines that have silttotal_ data in the depth zone, where values less than the thickness of the depth zone would usually indicate presence of rocks or bedrock or missing data. The volume of soil fines excludes the volume of rocks. Units for these volume measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The mass variables (mu_mass_lt2mm_g_cm2_silttotal_) give the mass of soil fines with silttotal_ data in the depth zone, which would exclude cases of bedrock or missing data. Units for these mass measures are given in grams (g), but are labeled and may be interpreted as a measure of soil mass per square centimeter of land surface area (g_cm2). The companion variable, 'mu_sum_comppct_r_fix_silttotal_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_silttotal_ calculation.
SSURGO Metadata - Tables and Columns Report and SSURGO Metadata - Table Column Descriptions Report and SSURGO Metadata - Domains Report available from http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053631 and National Soil Survey Handbook part 618.46: https://directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=41981.wba and Soil Survey Manual, Chapter 3: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/publication/?cid=nrcs142p2_054253 and Kellogg Soil Survey Laboratory Methods Manual, Soil Survey Investigations Report No. 42, Version 5.0, 2014 available from http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1253872.pdf and Soil Survey Investigations Report No. 45, Soil Survey Laboratory Information Manual, Version 2.0, February 2011, USDA, NRCS available from https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052226.pdf
mu_thick_cm3_cm2_silttotal_l_000_005
Thickness of soil in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198487 map units with the NoData value.
Producer defined
0.019999999553
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_l_005_015
Thickness of soil in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196720 map units with the NoData value.
Producer defined
0.019999999553
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_l_015_030
Thickness of soil in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195818 map units with the NoData value.
Producer defined
0.0319148935378
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_l_030_060
Thickness of soil in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196675 map units with the NoData value.
Producer defined
0.00999999977648
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_l_060_100
Thickness of soil in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198464 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_l_100_200
Thickness of soil in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 203811 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_l_000_999
Thickness of soil in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 192133 map units with the NoData value.
Producer defined
0.019999999553
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_l_rootzone
Thickness of soil in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.019999999553
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_l_000_005
Volume of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198487 map units with the NoData value.
Producer defined
0.00979730766267
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_l_005_015
Volume of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196720 map units with the NoData value.
Producer defined
0.0194289013743
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_l_015_030
Volume of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195818 map units with the NoData value.
Producer defined
0.00590200442821
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_l_030_060
Volume of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196675 map units with the NoData value.
Producer defined
0.00892793014646
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_l_060_100
Volume of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198464 map units with the NoData value.
Producer defined
0.00957519561052
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_l_100_200
Volume of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 203811 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_l_000_999
Volume of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 192133 map units with the NoData value.
Producer defined
0.0168460272253
455.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_l_rootzone
Volume of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0188398435712
441.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_l_000_005
Mass of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198487 map units with the NoData value.
Producer defined
0.00479999976233
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_l_005_015
Mass of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196720 map units with the NoData value.
Producer defined
0.00900000054389
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_l_015_030
Mass of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195818 map units with the NoData value.
Producer defined
0.00826280657202
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_l_030_060
Mass of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196675 map units with the NoData value.
Producer defined
0.0124991023913
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_l_060_100
Mass of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198464 map units with the NoData value.
Producer defined
0.0138840340078
76.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_l_100_200
Mass of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 203811 map units with the NoData value.
Producer defined
0.0111999996006
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_l_000_999
Mass of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 192133 map units with the NoData value.
Producer defined
0.00479999976233
714.196594238
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_l_rootzone
Mass of soil fines in the depth zone used in the silttotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.00479999976233
680.493286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_l_g_gF_000_005
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198487 map units with the NoData value.
Producer defined
0.0
0.850000083447
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_l_g_gF_005_015
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196720 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_l_g_gF_015_030
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195818 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_l_g_gF_030_060
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196675 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_l_g_gF_060_100
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198464 map units with the NoData value.
Producer defined
0.0
0.800000011921
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_l_g_gF_100_200
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 203811 map units with the NoData value.
Producer defined
0.0
0.800000011921
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_l_g_gF_000_999
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 192133 map units with the NoData value.
Producer defined
0.0
0.800000011921
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_l_g_gF_rootzone
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_silttotal_l
Sum of component percentages contributing to the mu_silttotal_l_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 192133 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_r_000_005
Thickness of soil in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15300 map units with the NoData value.
Producer defined
0.019999999553
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_r_005_015
Thickness of soil in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14061 map units with the NoData value.
Producer defined
0.019999999553
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_r_015_030
Thickness of soil in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14391 map units with the NoData value.
Producer defined
0.0299999993294
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_r_030_060
Thickness of soil in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16782 map units with the NoData value.
Producer defined
0.019999999553
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_r_060_100
Thickness of soil in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25104 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_r_100_200
Thickness of soil in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45255 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_r_000_999
Thickness of soil in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13479 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_r_rootzone
Thickness of soil in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24082 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_r_000_005
Volume of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15300 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_r_005_015
Volume of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14061 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_r_015_030
Volume of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14391 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_r_030_060
Volume of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16782 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_r_060_100
Volume of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25104 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_r_100_200
Volume of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45255 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_r_000_999
Volume of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13479 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_r_rootzone
Volume of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24082 map units with the NoData value.
Producer defined
0.0299999993294
443.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_r_000_005
Mass of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15300 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_r_005_015
Mass of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14061 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_r_015_030
Mass of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14391 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_r_030_060
Mass of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16782 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_r_060_100
Mass of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25104 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_r_100_200
Mass of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45255 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_r_000_999
Mass of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13479 map units with the NoData value.
Producer defined
0.0
716.860046387
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_r_rootzone
Mass of soil fines in the depth zone used in the silttotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24082 map units with the NoData value.
Producer defined
0.0120000001043
680.993286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_r_g_gF_000_005
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15307 map units with the NoData value.
Producer defined
0.0
0.915000021458
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_r_g_gF_005_015
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14067 map units with the NoData value.
Producer defined
0.0
0.915000021458
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_r_g_gF_015_030
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14400 map units with the NoData value.
Producer defined
0.0
0.915000081062
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_r_g_gF_030_060
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16791 map units with the NoData value.
Producer defined
0.0
0.915000081062
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_r_g_gF_060_100
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25117 map units with the NoData value.
Producer defined
0.0
0.915000021458
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_r_g_gF_100_200
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45265 map units with the NoData value.
Producer defined
0.0
0.921629846096
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_r_g_gF_000_999
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13485 map units with the NoData value.
Producer defined
0.0
0.915000021458
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_r_g_gF_rootzone
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24082 map units with the NoData value.
Producer defined
0.0
0.915000021458
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_silttotal_r
Sum of component percentages contributing to the mu_silttotal_r_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 13479 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_h_000_005
Thickness of soil in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198519 map units with the NoData value.
Producer defined
0.019999999553
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_h_005_015
Thickness of soil in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196734 map units with the NoData value.
Producer defined
0.019999999553
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_h_015_030
Thickness of soil in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195793 map units with the NoData value.
Producer defined
0.0319148935378
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_h_030_060
Thickness of soil in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196609 map units with the NoData value.
Producer defined
0.00999999977648
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_h_060_100
Thickness of soil in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198379 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_h_100_200
Thickness of soil in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 203746 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_h_000_999
Thickness of soil in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 192062 map units with the NoData value.
Producer defined
0.019999999553
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_silttotal_h_rootzone
Thickness of soil in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.019999999553
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_h_000_005
Volume of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198519 map units with the NoData value.
Producer defined
0.00979730766267
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_h_005_015
Volume of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196734 map units with the NoData value.
Producer defined
0.0194289013743
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_h_015_030
Volume of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195793 map units with the NoData value.
Producer defined
0.00590200442821
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_h_030_060
Volume of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196609 map units with the NoData value.
Producer defined
0.00892793014646
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_h_060_100
Volume of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198379 map units with the NoData value.
Producer defined
0.00957519561052
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_h_100_200
Volume of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 203746 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_h_000_999
Volume of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 192062 map units with the NoData value.
Producer defined
0.0168460272253
455.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_silttotal_h_rootzone
Volume of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0188398435712
441.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_h_000_005
Mass of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198519 map units with the NoData value.
Producer defined
0.00479999976233
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_h_005_015
Mass of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196734 map units with the NoData value.
Producer defined
0.00900000054389
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_h_015_030
Mass of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195793 map units with the NoData value.
Producer defined
0.00826280657202
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_h_030_060
Mass of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196609 map units with the NoData value.
Producer defined
0.0124991023913
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_h_060_100
Mass of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198379 map units with the NoData value.
Producer defined
0.0138840340078
76.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_h_100_200
Mass of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 203746 map units with the NoData value.
Producer defined
0.0111999996006
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_h_000_999
Mass of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 192062 map units with the NoData value.
Producer defined
0.00479999976233
714.196594238
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_silttotal_h_rootzone
Mass of soil fines in the depth zone used in the silttotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.00479999976233
680.493286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_h_g_gF_000_005
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198519 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_h_g_gF_005_015
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196734 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_h_g_gF_015_030
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195793 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_h_g_gF_030_060
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196609 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_h_g_gF_060_100
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 198379 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_h_g_gF_100_200
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 203746 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_h_g_gF_000_999
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 192062 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_h_g_gF_rootzone
Fraction of silt mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_silttotal_h
Sum of component percentages contributing to the mu_silttotal_h_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 192062 map units with the NoData value.
Producer defined
1.0
100.0
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_ll_g_gF_000_005
Fraction of silt mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_ll_g_gF_005_015
Fraction of silt mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_ll_g_gF_015_030
Fraction of silt mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_ll_g_gF_030_060
Fraction of silt mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_ll_g_gF_060_100
Fraction of silt mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_ll_g_gF_100_200
Fraction of silt mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_ll_g_gF_000_999
Fraction of silt mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_ll_g_gF_rootzone
Fraction of silt mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 196007 map units with the NoData value.
Producer defined
0.0
0.850000023842
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_hh_g_gF_000_005
Fraction of silt mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_hh_g_gF_005_015
Fraction of silt mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_hh_g_gF_015_030
Fraction of silt mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_hh_g_gF_030_060
Fraction of silt mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_hh_g_gF_060_100
Fraction of silt mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_hh_g_gF_100_200
Fraction of silt mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_hh_g_gF_000_999
Fraction of silt mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_silttotal_hh_g_gF_rootzone
Fraction of silt mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 195950 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
Clay fraction (mu_claytotal_) attributes
In this group of attributes, there are 3 range_point cases (low: _l, representative value: _r, and high: _h). There are four principal variables: three intermediate variables for the calculation of the thickness (mu_thick_cm3_cm2_claytotal_), the volume of soil fines (mu_vol_lt2mm_cm3_cm2_claytotal_), and the mass of soil fines (mu_mass_lt2mm_g_cm2_claytotal_), and the primary clay fraction variable (mu_claytotal_) for each of the 8 depth_zone cases, as well as a sum_comppct_ variable, for a subtotal of 4 * 8 + 1 = 33 attributes for each range_point case. There are two additional range point cases (low of the low: _ll and high of the high: _hh) with just the principal variables, and no additional thickness, volume, mass, or sum_comppct variables, for a subtotal of 8 attributes (by depth zone) for each additional range point case. Thus, there are 3 * 33 + 2 * 8 = 115 attributes in this group. Only the clay fraction variables (mu_claytotal_) are required by the GlobalSoilMap specifications. The fraction of clay is defined as the mass of clay particles divided by the mass of soil fines, expressed as a ratio between 0.0 and 1.0. Clay particles have diameters that are less than 0.002 mm. The soil fines consist of all soil particles less than 2 mm diameter (sand, silt, and clay). The 'claytotal' name is used because subdivisions of the clay particle size range are also defined. 'Particle size' is the effective diameter of a particle as measured by sedimentation, sieving, or micrometric methods. Particle sizes are expressed as classes with specific effective diameter class limits. The broad classes are clay, silt, and sand, ranging from the smaller to the larger of the less than 2 mm mineral soil fraction. It includes fragments of weathered or poorly consolidated fragments that disperse to particles less than 2 mm. The physical behavior of a soil is influenced by the size and percentage composition of the size classes. Particle size is important for most soil interpretations, for determination of soil hydrologic qualities, and for soil classification. The mass of soil fines is calculated by excluding the volume of rocks in a depth zone, and multiplying the volume of soil fines by the bulk density. The mass of clay is computed by multiplying the mass of soil fines by the fraction of clay (clay percentage / 100%). To summarize across horizons and components, the values for the mass of clay are summed by depth zone for each component, and weighted by the revised component percentage (comppct_r_fix) to compute a map unit summary. The values for the mass of soil fines are summed in the same way, and for each mapunit, the mass of clay is divided by the mass of soil fines to recompute a map unit level fraction of clay. The '_g_gF' in the attribute name indicates that fraction represents grams of clay (_g) per gram of soil fines (_gF). For these variables, there is no assurance that the fractions of sand, silt, and clay will sum to 1.0. This is in contrast to variables named with the prefix 'mu_claytotal_r_g_kg_', which are adjusted to ensure that the proportions of sand, silt, and clay fully account for all soil fines. The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The thickness variables (mu_thick_cm3_cm2_claytotal_) give the thickness of the soil horizons with claytotal_r data in the depth zone, where values less than the thickness of the depth zone would usually indicate bedrock or missing data. Units for these thickness measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The volume variables (mu_vol_lt2mm_cm3_cm2_claytotal_) give the volume of the soil fines that have claytotal_ data in the depth zone, where values less than the thickness of the depth zone would usually indicate presence of rocks or bedrock or missing data. The volume of soil fines excludes the volume of rocks. Units for these volume measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The mass variables (mu_mass_lt2mm_g_cm2_claytotal_) give the mass of soil fines with claytotal_ data in the depth zone, which would exclude cases of bedrock or missing data. Units for these mass measures are given in grams (g), but are labeled and may be interpreted as a measure of soil mass per square centimeter of land surface area (g_cm2). The companion variable, 'mu_sum_comppct_r_fix_claytotal_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_claytotal_ calculation.
SSURGO Metadata - Tables and Columns Report and SSURGO Metadata - Table Column Descriptions Report and SSURGO Metadata - Domains Report available from http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053631 and National Soil Survey Handbook part 618.46: https://directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=41981.wba and Soil Survey Manual, Chapter 3: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/publication/?cid=nrcs142p2_054253 and Kellogg Soil Survey Laboratory Methods Manual, Soil Survey Investigations Report No. 42, Version 5.0, 2014 available from http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1253872.pdf and Soil Survey Investigations Report No. 45, Soil Survey Laboratory Information Manual, Version 2.0, February 2011, USDA, NRCS available from https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052226.pdf
mu_thick_cm3_cm2_claytotal_l_000_005
Thickness of soil in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15403 map units with the NoData value.
Producer defined
0.019999999553
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_l_005_015
Thickness of soil in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14063 map units with the NoData value.
Producer defined
0.0299999993294
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_l_015_030
Thickness of soil in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14309 map units with the NoData value.
Producer defined
0.0299999993294
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_l_030_060
Thickness of soil in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16518 map units with the NoData value.
Producer defined
0.019999999553
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_l_060_100
Thickness of soil in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24483 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_l_100_200
Thickness of soil in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44204 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_l_000_999
Thickness of soil in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13321 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_l_rootzone
Thickness of soil in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_l_000_005
Volume of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15403 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_l_005_015
Volume of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14063 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_l_015_030
Volume of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14309 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_l_030_060
Volume of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16518 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_l_060_100
Volume of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24483 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_l_100_200
Volume of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44204 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_l_000_999
Volume of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13321 map units with the NoData value.
Producer defined
0.0
455.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_l_rootzone
Volume of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0299999993294
441.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_l_000_005
Mass of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15403 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_l_005_015
Mass of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14063 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_l_015_030
Mass of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14309 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_l_030_060
Mass of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16518 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_l_060_100
Mass of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24483 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_l_100_200
Mass of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44204 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_l_000_999
Mass of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13321 map units with the NoData value.
Producer defined
0.0
714.196594238
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_l_rootzone
Mass of soil fines in the depth zone used in the claytotal_l calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0120000001043
680.493286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_l_g_gF_000_005
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15434 map units with the NoData value.
Producer defined
0.0
0.790000021458
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_l_g_gF_005_015
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14092 map units with the NoData value.
Producer defined
0.0
0.790000021458
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_l_g_gF_015_030
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14340 map units with the NoData value.
Producer defined
0.0
0.944539070129
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_l_g_gF_030_060
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16550 map units with the NoData value.
Producer defined
0.0
0.929551184177
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_l_g_gF_060_100
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24525 map units with the NoData value.
Producer defined
0.0
0.923968315125
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_l_g_gF_100_200
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44247 map units with the NoData value.
Producer defined
0.0
0.925504088402
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_l_g_gF_000_999
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13348 map units with the NoData value.
Producer defined
0.0
0.910173237324
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_l_g_gF_rootzone
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0
0.850638568401
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_claytotal_l
Sum of component percentages contributing to the mu_claytotal_l_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 13321 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_r_000_005
Thickness of soil in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14740 map units with the NoData value.
Producer defined
0.019999999553
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_r_005_015
Thickness of soil in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13675 map units with the NoData value.
Producer defined
0.0299999993294
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_r_015_030
Thickness of soil in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13968 map units with the NoData value.
Producer defined
0.0299999993294
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_r_030_060
Thickness of soil in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16258 map units with the NoData value.
Producer defined
0.019999999553
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_r_060_100
Thickness of soil in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24337 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_r_100_200
Thickness of soil in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44093 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_r_000_999
Thickness of soil in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13191 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_r_rootzone
Thickness of soil in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23727 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_r_000_005
Volume of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14740 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_r_005_015
Volume of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13675 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_r_015_030
Volume of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13968 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_r_030_060
Volume of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16258 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_r_060_100
Volume of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24337 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_r_100_200
Volume of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44093 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_r_000_999
Volume of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13191 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_r_rootzone
Volume of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23727 map units with the NoData value.
Producer defined
0.0299999993294
443.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_r_000_005
Mass of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14740 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_r_005_015
Mass of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13675 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_r_015_030
Mass of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13968 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_r_030_060
Mass of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16258 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_r_060_100
Mass of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24337 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_r_100_200
Mass of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44093 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_r_000_999
Mass of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13191 map units with the NoData value.
Producer defined
0.0
716.860046387
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_r_rootzone
Mass of soil fines in the depth zone used in the claytotal_r calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23727 map units with the NoData value.
Producer defined
0.0120000001043
680.993286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_r_g_gF_000_005
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14771 map units with the NoData value.
Producer defined
0.0
0.857573747635
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_r_g_gF_005_015
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13704 map units with the NoData value.
Producer defined
0.0
0.875260055065
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_r_g_gF_015_030
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13999 map units with the NoData value.
Producer defined
0.0
0.970055162907
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_r_g_gF_030_060
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16290 map units with the NoData value.
Producer defined
0.0
0.952029049397
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_r_g_gF_060_100
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24379 map units with the NoData value.
Producer defined
0.0
0.943496704102
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_r_g_gF_100_200
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44135 map units with the NoData value.
Producer defined
0.0
0.949999988079
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_r_g_gF_000_999
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13218 map units with the NoData value.
Producer defined
0.0
0.931996524334
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_r_g_gF_rootzone
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23727 map units with the NoData value.
Producer defined
0.0
0.918076574802
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_claytotal_r
Sum of component percentages contributing to the mu_claytotal_r_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 13191 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_h_000_005
Thickness of soil in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15392 map units with the NoData value.
Producer defined
0.019999999553
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_h_005_015
Thickness of soil in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14063 map units with the NoData value.
Producer defined
0.0299999993294
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_h_015_030
Thickness of soil in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14310 map units with the NoData value.
Producer defined
0.0299999993294
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_h_030_060
Thickness of soil in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16519 map units with the NoData value.
Producer defined
0.019999999553
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_h_060_100
Thickness of soil in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24484 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_h_100_200
Thickness of soil in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_h_000_999
Thickness of soil in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13323 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_claytotal_h_rootzone
Thickness of soil in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_h_000_005
Volume of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15392 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_h_005_015
Volume of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14063 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_h_015_030
Volume of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14310 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_h_030_060
Volume of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16519 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_h_060_100
Volume of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24484 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_h_100_200
Volume of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_h_000_999
Volume of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13323 map units with the NoData value.
Producer defined
0.0
455.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_claytotal_h_rootzone
Volume of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0299999993294
441.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_h_000_005
Mass of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15392 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_h_005_015
Mass of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14063 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_h_015_030
Mass of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14310 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_h_030_060
Mass of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16519 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_h_060_100
Mass of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24484 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_h_100_200
Mass of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44208 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_h_000_999
Mass of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13323 map units with the NoData value.
Producer defined
0.0
714.196594238
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_claytotal_h_rootzone
Mass of soil fines in the depth zone used in the claytotal_h calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0120000001043
680.493286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_h_g_gF_000_005
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 15423 map units with the NoData value.
Producer defined
0.0
0.949999988079
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_h_g_gF_005_015
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14092 map units with the NoData value.
Producer defined
0.0
0.950000047684
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_h_g_gF_015_030
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 14341 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_h_g_gF_030_060
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16551 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_h_g_gF_060_100
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24526 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_h_g_gF_100_200
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 44251 map units with the NoData value.
Producer defined
0.0
1.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_h_g_gF_000_999
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13350 map units with the NoData value.
Producer defined
0.0
0.961459577084
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_h_g_gF_rootzone
Fraction of clay mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0
0.953927278519
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_claytotal_h
Sum of component percentages contributing to the mu_claytotal_h_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 13323 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_ll_g_gF_000_005
Fraction of clay mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0
0.822770774364
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_ll_g_gF_005_015
Fraction of clay mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0
0.822770774364
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_ll_g_gF_015_030
Fraction of clay mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0
0.822770774364
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_ll_g_gF_030_060
Fraction of clay mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0
0.822770774364
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_ll_g_gF_060_100
Fraction of clay mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0
0.822770774364
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_ll_g_gF_100_200
Fraction of clay mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0
0.822770774364
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_ll_g_gF_000_999
Fraction of clay mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0
0.822770774364
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_ll_g_gF_rootzone
Fraction of clay mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24009 map units with the NoData value.
Producer defined
0.0
0.822770774364
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_hh_g_gF_000_005
Fraction of clay mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0
0.953927278519
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_hh_g_gF_005_015
Fraction of clay mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0
0.953927278519
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_hh_g_gF_015_030
Fraction of clay mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0
0.953927278519
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_hh_g_gF_030_060
Fraction of clay mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0
0.953927278519
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_hh_g_gF_060_100
Fraction of clay mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0
0.953927278519
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_hh_g_gF_100_200
Fraction of clay mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0
0.953927278519
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_hh_g_gF_000_999
Fraction of clay mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0
0.953927278519
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_claytotal_hh_g_gF_rootzone
Fraction of clay mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 24010 map units with the NoData value.
Producer defined
0.0
0.953927278519
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
Soil organic carbon fraction (mu_soc_) attributes
Soil organic carbon (SOC) is related to the amount of organic matter in the soil and is an important indicator of soil quality and ecological function. In this group of attributes, there are 3 range_point cases (low: _l, representative value: _r, and high: _h). There are four principal variables: three intermediate variables for the calculation of the thickness (mu_thick_cm3_cm2_soc_), the volume of soil fines (mu_vol_lt2mm_r_cm3_cm2_soc_), and the mass of soil fines (mu_mass_lt2mm_g_cm2_soc_), and the primary SOC fraction variable (mu_soc_) for each of the 8 depth_zone cases, as well as a sum_comppct_ variable, for a subtotal of 4 * 8 + 1 = 33 attributes for each range_point case. There are two additional range point cases (low of the low: _ll and high of the high: _hh) with just the principal variables, and no additional thickness, volume, mass, or sum_comppct variables, for a subtotal of 8 attributes (by depth zone) for each additional range point case. Thus, there are 3 * 33 + 2 * 8 = 115 attributes in this group. Only the SOC fraction variables (mu_soc_) are required by the GlobalSoilMap specifications. The fraction of soil organic matter is defined as the mass of soil organic matter particles divided by the mass of soil fines, expressed as a ratio between 0.0 and 1.0. The soil fines consist of all soil particles less than 2 mm diameter (including sand, silt, and clay). Organic matter has strong influences on the physical and chemical properties of soils even when small quantities are present relative to the total soil mass. The organic fraction influences plant growth through its influence on soil properties. It encourages granulation and good tilth, increases porosity and lowers bulk density, promotes water infiltration, reduces plasticity and cohesion, and increases the available water capacity. It has a high capacity to adsorb and exchange cations and is important to pesticide binding. It furnishes energy to micro-organisms in the soil. As it decomposes, it releases nitrogen, phosphorous, and sulfur, as well as the greenhouse gases carbon dioxide and/or methane. The distribution of organic carbon according to depth indicates different episodes of soil deposition or soil formation. Laboratory measurements are made using a dry combustion method to determine percent total carbon. For an estimate of organic carbon in calcareous soils, the carbon present in carbonate compounds, such as CaCO3, must be calculated and then subtracted from the total carbon. This is done using the equation: percent organic carbon equals the percentage total carbon minus the percentage of carbon due to carbonates (CaCO3) for the soil fines (less than 2 mm particle size). The results are given as the percent of organic carbon in dry soil. To convert the figures for organic carbon to those for organic matter, multiply the organic carbon percentage by 1.724. The detailed procedures are outlined in Kellogg Soil Survey Laboratory Methods Manual. To compute soil organic carbon (SOC) from the SSURGO or STATSGO2 data, this multiplication is reversed by dividing by 1.724 to convert from organic matter to organic carbon (e.g., soc_r = om_r / 1.724 at the chorizon level). The '_mr' has been added to the attribute name to indicate this is a 'mass ratio' and distinguish it from other ways of presenting the data. See the 'Attribute Table' section of these metadata for a description of the layers and depth zones used to represent this attribute. The mass of soil fines is calculated by excluding the volume of rocks in a depth zone, and multiplying the volume of soil fines by the bulk density. To summarize across horizons and components, the values for the mass of organic carbon are summed by depth zone for each component, and weighted by the revised component percentage (comppct_r_fix) to compute a map unit summary. The values for the mass of soil fines are summed in the same way, and for each mapunit, the mass of organic carbon is divided by the mass of soil fines to recompute a map unit level fraction of soil organic carbon. The '_g_gF' in the attribute name indicates that fraction represents grams of SOC (_g) per gram of soil fines (_gF). The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The thickness variables (mu_thick_cm3_cm2_soc_) give the thickness of the soil horizons, for horizons having data for the SOC calculation, where values less than the thickness of the depth zone would usually indicate bedrock or missing data. Units for these thickness measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The volume variables (mu_vol_lt2mm_r_cm3_cm2_soc_) give the volume of the soil fines with SOC data in the depth zone, where values less than the thickness of the depth zone would usually indicate presence of rocks or bedrock or missing data. The volume of soil fines excludes the volume of rocks. Units for these volume measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The mass variables (mu_mass_lt2mm_g_cm2_soc_) give the mass of soil fines with SOC data in the depth zone, which would exclude cases of bedrock or missing data. Units for these mass measures are given in grams (g), but are labeled and may be interpreted as a measure of soil mass per square centimeter of land surface area (g_cm2). The companion variable, 'mu_sum_comppct_r_fix_soc_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_soc_ calculation.
SSURGO Metadata - Tables and Columns Report and SSURGO Metadata - Table Column Descriptions Report http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053631 and National Soil Survey Handbook part 618.43: https://directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=41981.wba and Soil Survey Manual, Chapter 3: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/publication/?cid=nrcs142p2_054253 and Kellogg Soil Survey Laboratory Methods Manual, Soil Survey Investigations Report No. 42, Version 5.0, 2014 available from http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1253872.pdf and Soil Survey Investigations Report No. 45, Soil Survey Laboratory Information Manual, Version 2.0, February 2011, USDA, NRCS available from https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052226.pdf
mu_thick_cm3_cm2_soc_l_mr_000_005
Thickness of soil in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13691 map units with the NoData value.
Producer defined
0.0399999991059
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_l_mr_005_015
Thickness of soil in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13265 map units with the NoData value.
Producer defined
0.0299999993294
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_l_mr_015_030
Thickness of soil in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13832 map units with the NoData value.
Producer defined
0.0299999993294
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_l_mr_030_060
Thickness of soil in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16918 map units with the NoData value.
Producer defined
0.0299999993294
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_l_mr_060_100
Thickness of soil in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25436 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_l_mr_100_200
Thickness of soil in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45476 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_l_mr_000_999
Thickness of soil in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13105 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_l_mr_rootzone
Thickness of soil in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_l_mr_000_005
Volume of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13691 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_l_mr_005_015
Volume of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13265 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_l_mr_015_030
Volume of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13832 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_l_mr_030_060
Volume of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16918 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_l_mr_060_100
Volume of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25436 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_l_mr_100_200
Volume of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45476 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_l_mr_000_999
Volume of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13105 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_l_mr_rootzone
Volume of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0299999993294
443.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_l_mr_000_005
Mass of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13691 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_l_mr_005_015
Mass of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13265 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_l_mr_015_030
Mass of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13832 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_l_mr_030_060
Mass of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16918 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_l_mr_060_100
Mass of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25436 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_l_mr_100_200
Mass of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45476 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_l_mr_000_999
Mass of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13105 map units with the NoData value.
Producer defined
0.0
716.860046387
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_l_mr_rootzone
Mass of soil fines in the depth zone used in the soc_l_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0120000001043
680.993286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_l_mr_g_gF_000_005
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13720 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_l_mr_g_gF_005_015
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13293 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_l_mr_g_gF_015_030
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13868 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_l_mr_g_gF_030_060
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16956 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_l_mr_g_gF_060_100
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25486 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_l_mr_g_gF_100_200
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45530 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_l_mr_g_gF_000_999
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13133 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_l_mr_g_gF_rootzone
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_soc_l_mr
Sum of component percentages contributing to the mu_soc_l_mr_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 13105 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_r_mr_000_005
Thickness of soil in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13670 map units with the NoData value.
Producer defined
0.0399999991059
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_r_mr_005_015
Thickness of soil in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13244 map units with the NoData value.
Producer defined
0.0299999993294
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_r_mr_015_030
Thickness of soil in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13807 map units with the NoData value.
Producer defined
0.0299999993294
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_r_mr_030_060
Thickness of soil in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16888 map units with the NoData value.
Producer defined
0.0299999993294
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_r_mr_060_100
Thickness of soil in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25408 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_r_mr_100_200
Thickness of soil in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45448 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_r_mr_000_999
Thickness of soil in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13083 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_r_mr_rootzone
Thickness of soil in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23369 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_r_mr_000_005
Volume of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13670 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_r_mr_005_015
Volume of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13244 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_r_mr_015_030
Volume of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13807 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_r_mr_030_060
Volume of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16888 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_r_mr_060_100
Volume of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25408 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_r_mr_100_200
Volume of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45448 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_r_mr_000_999
Volume of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13083 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_r_mr_rootzone
Volume of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23369 map units with the NoData value.
Producer defined
0.0299999993294
443.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_r_mr_000_005
Mass of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13670 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_r_mr_005_015
Mass of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13244 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_r_mr_015_030
Mass of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13807 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_r_mr_030_060
Mass of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16888 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_r_mr_060_100
Mass of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25408 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_r_mr_100_200
Mass of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45448 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_r_mr_000_999
Mass of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13083 map units with the NoData value.
Producer defined
0.0
716.860046387
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_r_mr_rootzone
Mass of soil fines in the depth zone used in the soc_r_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23369 map units with the NoData value.
Producer defined
0.0120000001043
680.993286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_r_mr_g_gF_000_005
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13699 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_r_mr_g_gF_005_015
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13272 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_r_mr_g_gF_015_030
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13843 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_r_mr_g_gF_030_060
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16926 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_r_mr_g_gF_060_100
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25458 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_r_mr_g_gF_100_200
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45502 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_r_mr_g_gF_000_999
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13111 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_r_mr_g_gF_rootzone
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23369 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_soc_r_mr
Sum of component percentages contributing to the mu_soc_r_mr_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 13083 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_h_mr_000_005
Thickness of soil in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13694 map units with the NoData value.
Producer defined
0.0399999991059
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_h_mr_005_015
Thickness of soil in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13266 map units with the NoData value.
Producer defined
0.0299999993294
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_h_mr_015_030
Thickness of soil in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13838 map units with the NoData value.
Producer defined
0.0299999993294
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_h_mr_030_060
Thickness of soil in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16923 map units with the NoData value.
Producer defined
0.0299999993294
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_h_mr_060_100
Thickness of soil in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25440 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_h_mr_100_200
Thickness of soil in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45478 map units with the NoData value.
Producer defined
0.0399999991059
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_h_mr_000_999
Thickness of soil in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13106 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_soc_h_mr_rootzone
Thickness of soil in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_h_mr_000_005
Volume of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13694 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_h_mr_005_015
Volume of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13266 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_h_mr_015_030
Volume of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13838 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_h_mr_030_060
Volume of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16923 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_h_mr_060_100
Volume of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25440 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_h_mr_100_200
Volume of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45478 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_h_mr_000_999
Volume of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13106 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_soc_h_mr_rootzone
Volume of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0299999993294
443.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_h_mr_000_005
Mass of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13694 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_h_mr_005_015
Mass of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13266 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_h_mr_015_030
Mass of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13838 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_h_mr_030_060
Mass of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16923 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_h_mr_060_100
Mass of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25440 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_h_mr_100_200
Mass of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45478 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_h_mr_000_999
Mass of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13106 map units with the NoData value.
Producer defined
0.0
716.860046387
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_soc_h_mr_rootzone
Mass of soil fines in the depth zone used in the soc_h_mr calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0120000001043
680.993286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_h_mr_g_gF_000_005
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13727 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_h_mr_g_gF_005_015
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13298 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_h_mr_g_gF_015_030
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13874 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_h_mr_g_gF_030_060
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16961 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_h_mr_g_gF_060_100
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 25490 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_h_mr_g_gF_100_200
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 45532 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_h_mr_g_gF_000_999
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 13138 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_h_mr_g_gF_rootzone
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. The '_h' in the attribute name indicates that the attribute value represents the high end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_soc_h_mr
Sum of component percentages contributing to the mu_soc_h_mr_g_gF_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 13106 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_ll_mr_g_gF_000_005
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_ll_mr_g_gF_005_015
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_ll_mr_g_gF_015_030
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_ll_mr_g_gF_030_060
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_ll_mr_g_gF_060_100
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_ll_mr_g_gF_100_200
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_ll_mr_g_gF_000_999
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_ll_mr_g_gF_rootzone
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'low of the low' (minimum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23391 map units with the NoData value.
Producer defined
0.0
0.579999983311
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_hh_mr_g_gF_000_005
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_hh_mr_g_gF_005_015
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_hh_mr_g_gF_015_030
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_hh_mr_g_gF_030_060
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_hh_mr_g_gF_060_100
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_hh_mr_g_gF_100_200
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_hh_mr_g_gF_000_999
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_soc_hh_mr_g_gF_rootzone
Fraction of soil organic carbon (SOC) mass to the mass of soil fines, selecting the 'high of the high' (maximum) for the depth zone from all chorizon records in the mapunit. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 23396 map units with the NoData value.
Producer defined
0.0
0.580000042915
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
Calcium Carbonate (CaCO3, mu_caco3_) attributes
The amount of Calcium Carbonate (CaCO3) in the soil influences the availability of plant nutrients. In this group of attributes, there are 3 range_point cases (low: _l, representative value: _r, and high: _h). There are four principal variables: three intermediate variables for the calculation of the thickness (mu_thick_cm3_cm2_caco3_), the volume of soil fines (mu_vol_lt2mm_r_cm3_cm2_caco3_), and the mass of soil fines (mu_mass_lt2mm_r_g_cm2_caco3_), and the primary CaCO3 variable (mu_caco3_) for each of the 8 depth_zone cases, as well as a sum_comppct_ variable, for a subtotal of 4 * 8 + 1 = 33 attributes for each range_point case. There are two additional range point cases (low of the low: _ll and high of the high: _hh) with just the principal variables, and no additional thickness, volume, mass, or sum_comppct variables, for a subtotal of 8 attributes (by depth zone) for each additional range point case. Thus, there are 3 * 33 + 2 * 8 = 115 attributes in this group. 'Calcium carbonate equivalent' is the quantity of carbonate in the soil expressed as CaCO3 and as a weight percentage of the less than 2 mm size fraction. Calcium carbonate has an effect on soil pH and a direct effect on nutrient availability. Nitrogen fertilizers should be incorporated into calcareous soils to prevent nitrite accumulation or ammonium-N volatilization. The availability of phosphorus and molybdenum is reduced by the high levels of calcium and magnesium which are associated with carbonates. In addition, iron, boron, zinc, and manganese deficiencies are common in soils that have a high calcium carbonate equivalent. In some climates, soils that have a high calcium carbonate equivalent in the surface layer are subject to wind erosion. This effect may occur in soils that have a calcium carbonate equivalent of more than 5 percent. A strongly or violently effervescent reaction to cold, dilute hydrochloric acid (HCL) defines calcareous in the wind erodibility groups because of the significance of finely divided carbonates. Calcium carbonate equivalent is used for soil classification in the criteria for several diagnostic horizons (e.g., mollic epipedon), Rendolls suborder, Rendollic Eutrudepts subgroup, and carbonatic mineralogy class. Calcium carbonate equivalent is measured by a method that uses an aqueous solution of 3 normal hydrogen chloride. The method is outlined in Soil Survey Investigations Report No. 42. It also may be measured in the field using calcimeters. To summarize across horizons and components, the CaCO3 values (caco3_) from the chorizon table are weighted by the mass of soil fines, and are summed by depth zone for each component, and weighted by the revised component percentage (comppct_r_fix) to compute a map unit summary. The 'mu_' prefix on the attribute name indicates it is a map unit weighted average, in which the map unit sum of the weighted CaCO3 values is divided by the map unit sum of the weights, to compute an average value at the map unit level. See the 'Attribute Table' section of these metadata for a description of the layers and depth zones used to represent this attribute. The mass of soil fines is calculated by excluding the volume of rocks in a depth zone, and multiplying the volume of soil fines by the bulk density. The 'mu_' qualifier in the file name indicates that the map unit level variable is a weighted average of the component variables, with the revised component percentage (comppct_r_fix) as the weighting factor. In the revised component percentage, all of the original comppct_r values have been scaled so that the sum of the comppct_r_fix will equal 100%. The thickness variables (mu_thick_cm3_cm2_caco3_) give the thickness of the soil horizons, for horizons having data for the CaCO3 calculation, where values less than the thickness of the depth zone would usually indicate bedrock or missing data. Units for these thickness measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The volume variables (mu_vol_lt2mm_r_cm3_cm2_caco3_) give the volume of the soil fines with CaCO3 data in the depth zone, where values less than the thickness of the depth zone would usually indicate presence of rocks or bedrock or missing data. The volume of soil fines excludes the volume of rocks. Units for these volume measures are given in cm, but are labeled and may be interpreted as cubic centimeters of soil volume per square centimeter of land surface area (cm3_cm2). The mass variables (mu_mass_lt2mm_r_g_cm2_caco3_) give the mass of soil fines with CaCO3 data in the depth zone, which would exclude cases of bedrock or missing data. Units for these mass measures are given in grams (g), but are labeled and may be interpreted as a measure of soil mass per square centimeter of land surface area (g_cm2). The companion variable, 'mu_sum_comppct_r_fix_caco3_' can be used to interpret the other values by showing what percentage of the land area in the map unit was included in the mu_caco3_ calculation. The maximum value for the high end of the range for the percentage of CaCO3 is 110%, which exceeds the logical maximum of 100%. The error has been traced to 5 map units that account for less than 25 km2 of CONUS, and it is suspected that the errors are in the original data. The map unit keys in the SSURGO database that have these caco3_h errors are 169580, 169591, 172182, 172201, and 797581.
SSURGO Metadata - Tables and Columns Report and SSURGO Metadata - Table Column Descriptions Report http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/geo/?cid=nrcs142p2_053631 and National Soil Survey Handbook part 618.11: https://directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=41981.wba and Soil Survey Manual, Chapter 3: http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/survey/publication/?cid=nrcs142p2_054253 and Kellogg Soil Survey Laboratory Methods Manual, Soil Survey Investigations Report No. 42, Version 5.0, 2014 available from http://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb1253872.pdf and Soil Survey Investigations Report No. 45, Soil Survey Laboratory Information Manual, Version 2.0, February 2011, USDA, NRCS available from https://www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052226.pdf
mu_thick_cm3_cm2_caco3_l_000_005
Thickness of soil in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19736 map units with the NoData value.
Producer defined
0.0399999991059
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_l_005_015
Thickness of soil in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19088 map units with the NoData value.
Producer defined
0.019999999553
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_l_015_030
Thickness of soil in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19022 map units with the NoData value.
Producer defined
0.019999999553
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_l_030_060
Thickness of soil in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 21117 map units with the NoData value.
Producer defined
0.019999999553
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_l_060_100
Thickness of soil in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 29153 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_l_100_200
Thickness of soil in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 48876 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_l_000_999
Thickness of soil in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17723 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_l_rootzone
Thickness of soil in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 28183 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_l_000_005
Volume of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19736 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_l_005_015
Volume of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19088 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_l_015_030
Volume of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19022 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_l_030_060
Volume of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 21117 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_l_060_100
Volume of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 29153 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_l_100_200
Volume of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 48876 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_l_000_999
Volume of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17723 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_l_rootzone
Volume of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 28183 map units with the NoData value.
Producer defined
0.0151890469715
443.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_l_000_005
Mass of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19736 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_l_005_015
Mass of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19088 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_l_015_030
Mass of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19022 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_l_030_060
Mass of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 21117 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_l_060_100
Mass of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 29153 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_l_100_200
Mass of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 48876 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_l_000_999
Mass of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17723 map units with the NoData value.
Producer defined
0.0
716.860046387
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_l_rootzone
Mass of soil fines in the depth zone used in the caco3_l_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 28183 map units with the NoData value.
Producer defined
0.0120000001043
680.993286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_l_percent_gF_000_005
Calcium carbonate (CaCO3, computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19761 map units with the NoData value.
Producer defined
0.0
88.1975250244
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_l_percent_gF_005_015
Calcium carbonate (CaCO3, computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19112 map units with the NoData value.
Producer defined
0.0
88.539642334
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_l_percent_gF_015_030
Calcium carbonate (CaCO3, computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19049 map units with the NoData value.
Producer defined
0.0
90.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_l_percent_gF_030_060
Calcium carbonate (CaCO3, computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 21148 map units with the NoData value.
Producer defined
0.0
90.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_l_percent_gF_060_100
Calcium carbonate (CaCO3, computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 29195 map units with the NoData value.
Producer defined
0.0
90.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_l_percent_gF_100_200
Calcium carbonate (CaCO3, computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 48918 map units with the NoData value.
Producer defined
0.0
89.7233810425
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_l_percent_gF_000_999
Calcium carbonate (CaCO3, computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17747 map units with the NoData value.
Producer defined
0.0
89.6533584595
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_l_percent_gF_rootzone
Calcium carbonate (CaCO3, computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_l' in the attribute name indicates that the attribute value represents the low end of the confidence interval of expected data. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 28183 map units with the NoData value.
Producer defined
0.0
90.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_sum_comppct_r_fix_caco3_l
Sum of component percentages contributing to the mu_caco3_l_ calculations. A corrected version (comppct_r_fix) of the representative value of the component percentage (comppct_r) is used which is scaled so that the sum of component percentages for all components will equal 100%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there are errors in the component percentages. There are 17723 map units with the NoData value.
Producer defined
1.0
100.000007629
percent of land area in the map unit
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_r_000_005
Thickness of soil in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17939 map units with the NoData value.
Producer defined
0.0399999991059
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_r_005_015
Thickness of soil in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17314 map units with the NoData value.
Producer defined
0.019999999553
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_r_015_030
Thickness of soil in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17281 map units with the NoData value.
Producer defined
0.019999999553
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_r_030_060
Thickness of soil in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19397 map units with the NoData value.
Producer defined
0.019999999553
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_r_060_100
Thickness of soil in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 27467 map units with the NoData value.
Producer defined
0.00999999977648
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_r_100_200
Thickness of soil in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 47206 map units with the NoData value.
Producer defined
0.019999999553
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_r_000_999
Thickness of soil in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16072 map units with the NoData value.
Producer defined
0.0799999982119
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_thick_cm3_cm2_caco3_r_rootzone
Thickness of soil in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 26552 map units with the NoData value.
Producer defined
0.0299999993294
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_r_000_005
Volume of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17939 map units with the NoData value.
Producer defined
0.0
5.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_r_005_015
Volume of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17314 map units with the NoData value.
Producer defined
0.0
10.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_r_015_030
Volume of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17281 map units with the NoData value.
Producer defined
0.0
15.0000009537
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_r_030_060
Volume of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19397 map units with the NoData value.
Producer defined
0.0
30.0000019073
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_r_060_100
Volume of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 27467 map units with the NoData value.
Producer defined
0.0
40.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_r_100_200
Volume of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 47206 map units with the NoData value.
Producer defined
0.0
100.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_r_000_999
Volume of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16072 map units with the NoData value.
Producer defined
0.0
457.0
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_vol_lt2mm_r_cm3_cm2_caco3_r_rootzone
Volume of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 26552 map units with the NoData value.
Producer defined
0.0151890469715
443.484741211
cm (interpreted as cm3_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_r_000_005
Mass of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17939 map units with the NoData value.
Producer defined
0.0
9.5
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_r_005_015
Mass of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17314 map units with the NoData value.
Producer defined
0.0
19.0
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_r_015_030
Mass of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17281 map units with the NoData value.
Producer defined
0.0
28.6499996185
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_r_030_060
Mass of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19397 map units with the NoData value.
Producer defined
0.0
57.2999992371
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_r_060_100
Mass of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 27467 map units with the NoData value.
Producer defined
0.0
76.2799987793
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_r_100_200
Mass of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 47206 map units with the NoData value.
Producer defined
0.0
190.275527954
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_r_000_999
Mass of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16072 map units with the NoData value.
Producer defined
0.0
716.860046387
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_mass_lt2mm_r_g_cm2_caco3_r_rootzone
Mass of soil fines in the depth zone used in the caco3_r_ calculation, computed as a weighted average of the components, with the adjusted component percentage (comppct_r_fix) as the weighting factor. Values are calculated for a depth zone from the surface to the depth of a root restriction. If no root restricting layer is present, this is the same as the depth of the soil (e.g., labeled 000_999). Data may be drawn from one or more horizons. The detailed criteria for the calculation of the depth of the rootzone are based on exclusion of any soil horizon or zone in which any of the following are true: the horizon is bedrock, the bulk density is greater than 1.85 grams per cubic centimeter, the electrical conductivity is greater than 12 deciSiemens per meter (an indication of high soluable salts), the soil pH is less than 3.5 (very acid soil), the depth to a permanent water table, a percentage of sand (sandtotal_r) greater than or equal to 95%, or a mass percentage of rock fragments greater than or equal to 60%. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 26552 map units with the NoData value.
Producer defined
0.0120000001043
680.993286133
g (interpreted as g_cm2)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_r_percent_gF_000_005
Calcium carbonate (CaCO3), computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 0 to 5 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17964 map units with the NoData value.
Producer defined
0.0
95.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_r_percent_gF_005_015
Calcium carbonate (CaCO3), computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 5 to 15 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17338 map units with the NoData value.
Producer defined
0.0
95.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_r_percent_gF_015_030
Calcium carbonate (CaCO3), computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 15 to 30 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 17308 map units with the NoData value.
Producer defined
0.0
95.0000076294
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_r_percent_gF_030_060
Calcium carbonate (CaCO3), computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 30 to 60 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 19428 map units with the NoData value.
Producer defined
0.0
95.0000076294
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_r_percent_gF_060_100
Calcium carbonate (CaCO3), computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 60 to 100 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 27509 map units with the NoData value.
Producer defined
0.0
95.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_r_percent_gF_100_200
Calcium carbonate (CaCO3), computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for a depth zone of 100 to 200 cm from the surface. Data may be drawn from one or more horizons. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 47248 map units with the NoData value.
Producer defined
0.0
95.0
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_r_percent_gF_000_999
Calcium carbonate (CaCO3), computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_r' in the attribute name indicates that the attribute value is representative of the expected data (perhaps a mean or median). Values are calculated for the total soil profile. Data may be drawn from one or more horizons. The maximum depth is not 999 cm, but depends on the soil horizon descriptions and may be limited by bedrock. In the FY2016 snapshot the deepest valid soil depth is 457 cm. A NoData value of -3.4e38 (-3.39999995214436E+38) may occur if there is no soil in the depth zone or if data are missing for this attribute or if there are errors in the component percentages. There are 16096 map units with the NoData value.
Producer defined
0.0
94.6647338867
mass ratio (dimensionless)
-3.39999995214436E+38 NoData value (-3.4e38)
mu_caco3_r_percent_gF_rootzone
Calcium carbonate (CaCO3), computed as a weighted average, with the mass of soil fines and the adjusted component percentage (comppct_r_fix) as the weighting factors. The '_r' in the attribute name indicates that the attribute value is