Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 20050801 Title: Winter Trail Fire 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 Name: Winter Trail Agency: US Fish & Wildlife Service Land Management Unit: Yukon Flats National Wildlife Refuge Date of Fire: 06/15/2004 Type of assessment: Extended Acres within Fire Perimeter: 301990 Landsat Path and Row: 69/13 Pre-Fire Landsat Date/Scene ID: Landsat 7; June 25, 2001 / LE7069013000117650 Post-Fire Landsat Date/Scene ID: Landsat 7; June 20, 2005 / LE7069013000517150 Output Dataset Projection: Alaska Albers Conical Equal Area Datum Name: NAD83 Spheroid Name: GRS80 1st Std Parallel: 55 00 00 N 2nd Std Parallel: 65 00 00 N Longitude of Central Meridian: 154 00 00 W Latitude Origin: 50 00 00 N False E: 0 0 0 False N: 0 0 0 Image subset Corner Coordinate (center of upper left pixel, projection meters) ULX: 365490 LRX: 414330 ULY: 1944870 LRY: 1886250 Image subset size: #Rows: 1955 #Columns: 1629 Pixel size: 30 meters Bounding Box: North Lat: 67 15 09 N South Lat: 66 40 15 N East Long: 144 26 38 W West Long: 145 43 27 W Latitude and Longitude within Fire Perimeter: Latitude: 67 01 34 N Longitude: 145 10 25 W Fire Perimeter: Automated with Manual Edits 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: witr04b_pretm.tif Pre-Fire Landsat data subset (bands 1-5,7 Geo-TIFF format) witr04b_postm.tif Post-Fire Landsat data subset (bands 1-5,7 Geo-TIFF format) witr04b_dnbr Differenced Normalized Burn Ratio (DNBR) subset (16 bit ArcInfo GRID) witr04b_pi Fire Perimeter (shape file, includes cloud masks for 2001 and 2005 scenes) witr04b_hist.xls DNBR pixel count within the fire perimeter (excel file) d691306010605 Full scene DNBR (16 bit ArcInfo GRID) Note: This file name is the same as the one for the Lower Mouth Fire but the postfire scene used to create the data is different (see above). Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20010625 (pre-fire image) Single_Date/Time: Calendar_Date: 20040615 (date fire began) Single_Date/Time: Calendar_Date: 20050620 (post-fire image) Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: as needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -145.43.27 East_Bounding_Coordinate: -144.26.38 North_Bounding_Coordinate: 67.15.09 South_Bounding_Coordinate: 66.40.15 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: Winter Trail 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: 20050801 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: 20050817 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