Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 20050901 Title: Preacher and Middle Birch Fires of Yukon Flats National Wildlife Refuge - 2004 Geospatial_Data_Presentation_Form: Raster digital data. Vector data are also available as ArcView Shape Files. Publication_Information: Publication_Place: Sioux Falls, South Dakota USA Publisher: U.S. Geological Survey Online_Linkage: http://edc.usgs.gov Description: Abstract: The U.S. Geological Survey (USGS) has entered into a cooperative agreement with the National Park Service (NPS) to deliver satellite imagery and derivitive products centered on major fires that impact national parks and other federal lands. This data set was compiled at the request of a federal land management agency and is part of a suite of products generated for a specific fire. See the National Burn Severity Mapping web site at: http://edc2.usgs.gov/fsp/severity/fire_main.asp Purpose: The purpose of this project is to develop a robust mapping methodology and consistent data products that allow federal land managers and fire ecologists to evaluate and compare burn severity within individual fires and between fires across various ecosystems. These products will help land managers to more effectively plan, implement and monitor fire recovery activities. Supplemental_Information: Fire Names: Preacher and Middle Birch Agency: US Fish & Wildlife Service Land Management Unit: Yukon Flats National Wildlife Refuge Date of Fires: 06/14/2004, 06/14/2004 Type of assessment: Extended Acres within Fire Perimeters: 255820 (parts 1 & 2, see notes below), 30020 Landsat Path and Row: 68/14 Pre-Fire Landsat Date/Scene ID: Landsat 5; July 18, 2003 / LT5068014000319910 Post-Fire Landsat Date/Scene ID: Landsat 7; Aug. 16, 2005 / LE7068014000522850 Output Dataset Projection: Alaska Albers Conical Equal Area Datum Name: NAD83 Spheroid Name: GRS80 1st Standard Parallel: 55 00 00 N 2nd Standard Parallel: 65 00 00 N Central Meridian: 154 00 00 W Latitude of Origin: 55 00 00 N False E: 0 False N: 0 Image subset Corner Coordinate (center of upper left pixel, projection meters) ULX: 370740 LRX: 450450 ULY: 1837020 LRY: 1775160 Image subset size: #Rows: 2063 #Columns: 2658 Pixel size: 30 meters Bounding Box: North Lat: 66 17 00 N South Lat: 65 38 09 N East Long: 143 59 41 W West Long: 145 54 41 W Latitude and Longitude within Fire Perimeters: Latitude Longitude Preacher: 65 59 52 N 145 07 27 W Middle Birch: 65 58 15 N 144 20 36 W Fire Perimeter: Manually digitized from Landsat imagery. Note 1: Used Refuge-provided perimeter to locate common boundary between each fire. Note 2: The Preacher perimeter was extended to the south west based upon browse imagery from September 2004. This extension was added as an additional polygon (part 2) while retaining original boundary (part 1). For further information on NLAPS and Landsat TM data, please refer to the metadata documentation found on the USGS Clearinghouse website at: http://www.fgdc.gov/clearinghouse/clearinghouse.html Product List: prmi04b_pretm.tif July 2003 Pre-Fire Landsat data subset (bands 1-5,7 Geo-TIFF format) prmi04b_postm.tif August 2005 Post-Fire Landsat data subset (bands 1-5,7 Geo-TIFF format) prmi04b_dnbr July03 - August05 dNBR subset (16 bit ArcInfo GRID) prmi04b_pi Fire Perimeter (shape file) includes polygons for Preacher (parts 1&2) and Middle Birch prmi04b_hist.xls DNBR pixel count within the fire perimeters (excel file) d681407030805 Full Scene DNBR July03 - August05 (16 bit ArcInfo GRID) Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20030718 (pre-fire image) Single_Date/Time: Calendar_Date: 20040614 (date fires began) Single_Date/Time: Calendar_Date: 20050816 (post-fire image) Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: as needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -145.54.41 East_Bounding_Coordinate: -143.59.41 North_Bounding_Coordinate: 66.17.00 South_Bounding_Coordinate: 65.38.09 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: burn mapping Theme_Keyword: imagery Theme_Keyword: fire Theme_Keyword: Landsat Theme_Keyword: US Fish & Wildlife Service Place: Place_Keyword_Thesaurus: none Place_Keyword: Yukon Flats National Wildlife Refuge Place_Keyword: Preacher Place_Keyword: Middle Birch Place_Keyword: Alaska Access_Constraints: FTP data sets are available to any user. Use_Constraints: There are no restrictions on use, except for reasonable and proper acknowledgement of information sources. Point_of_Contact: Contact_Information: +001 605-594-6151 or (USA) 800-252-4547 Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Position: CSR Contact_Voice_Telephone: +001 605-594-6151 Contact_Address: Address_Type: physical and mailing address Address: 47914 252nd Street City: Sioux Falls State_or_Province: SD Postal_Code: 57198-0001 Country: USA Contact_TDD/TTY_Telephone: +001 605-594-6933 Contact_Voice_Telephone: +001 605-594-6151 Contact_Facsimile_Telephone: +001 605-594-6589 Contact_Electronic_Mail_Address: fsedc@usgs.gov Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT Contact_Instructions: http://edc2.usgs.gov/fsp/severity/contact_us.asp Data_Set_Credit: USGS and NASA Native_Data_Set_Environment: Oracle, ERDAS Imagine, & ArcInfo Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Three on-board calibrators (two solar, one internal) provide an absolute accuracy of 5 percent, excluding band 6. Logical_Consistency_Report: These Landsat data are collected from a nominal altitude of 705 kilometers in a near-polar, near-circular, sun-synchronous orbit at an inclination of 98.2 degrees, imaging the same 183-km swath of Earth's surface every 16 days. The pixels representing the bands for the image are in the data set only once. Completeness_Report: Fire perimeter was automated, (seed value 425, distance 325) with manual edits. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Energy reflected from Earth's surface passes through a whisk-broom scanning system and all-reflective optics before being collected by the solid-state detectors at the focal plane. Lineage: Process_Step: Process_Description: These data products are derived from Landsat Thematic Mapper data. A pre-fire scene and a post-fire scene are analyzed to create a Differenced Normalized Burn Ratio (DNBR) image. The DNBR image portrays the variations of burn severity within the fire. The Landsat images are terrain corrected and geometrically rectified to an Albers Conical Equal Area map projection using the National Landsat Archive Production System (NLAPS). The images are further processed to convert bands 1-5 and 7 to at-satellite-reflectance. The Normalized Burn Ratio (NBR) is computed for each date of imagery using the following formula: (Band 4 - Band 7) / (Band 4 + Band 7) = NBR The differenced NBR is computed by subtracting the post-fire NBR from the pre-fire NBR: PreNBR - PostNBR = DNBR Higher DNBR values are correlated with more severe burns. The DNBR image is evaluated to determine the threshold value between burned and unburned areas. The perimeter of the fire is delineated using the DNBR image. The DNBR image, the pre-fire and post-fire TM images, and a fire perimeter vector file are provided in digital format in the map projection used by the National Park Service. Source_Used_Citation_Abbreviation: TM Process_Date: 20050901 Source_Produced_Citation_Abbreviation: DNBR Cloud_Cover: 10 Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Position: Principal Scientist Land Cover Applications Contact_Address: Address_Type: mailing and physical address Address: 47914 252nd Street National Center EROS City: Sioux Falls State_or_Province: SD Postal_Code: 57198-0001 Country: USA Contact_Voice_Telephone: +001 605-594-6151 Contact_TDD/TTY_Telephone: +001 605 594-6933 Contact_Facsimile_Telephone: +001 605 594-6589 Contact_Electronic_Mail_Address: fsedc@usgs.gov Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT Contact_Instructions: http://edc2.usgs.gov/fsp/severity/contact_us.asp Distribution_Liability: No warranty expressed or implied is made by the USGS regarding the use of the data, nor does the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Geo-TIFF Format_Version_Number: 1 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://edc2.usgs.gov/fsp/severity/download_data.asp Digital_Form: Digital_Transfer_Information: Format_Name: DNBR ArcInfo GRID Format_Version_Number: 1 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://edc2.usgs.gov/fsp/severity/download_data.asp Digital_Form: Digital_Transfer_Information: Format_Name: shape file Format_Version_Number: 1 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://edc2.usgs.gov/fsp/severity/download_data.asp Fees: No charge Ordering_Instructions: http://edc2.usgs.gov/fsp/severity/help.asp#ordering Turnaround: same day Metadata_Reference_Information: Metadata_Date: 20050915 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS National Center EROS Science & Applications Branch Contact_Position: Principal Scientist Land Cover Applications Contact_Address: Address_Type: mailing and physical address Address: 47914 252nd Street National Center EROS City: Sioux Falls State_or_Province: SD Postal_Code: 57198-0001 Country: USA Contact_Voice_Telephone: +001 605-594-6151 Contact_TDD/TTY_Telephone: +001 605-594-6933 Contact_Facsimile_Telephone: +001 605-594-6589 Contact_Electronic_Mail_Address: fsedc@usgs.gov Hours_of_Service: 0800 - 1600 CT, M-F, -6 h GMT Contact_Instructions: http://edc2.usgs.gov/fsp/severity/contact_us.asp Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none