Identification Information Citation Originator: USDA Forest Service, Geospatial Technology and Applications Center, BAER Imagery Support Program Publication Date: 2019-08-19 Title: Burned Area Reflectance Classification (BARC) Data Bundle for the MUSEUM Fire occurring on the Coconino National Forest Publication Information Publication Place: Salt Lake City, Utah, USA Publisher: USDA Forest Service Geospatial Data Presentation Form: raster digital data Online Linkage: https://fsapps.nwcg.gov/afm/baer/download.php Description Abstract: These data products are preliminary burn severity assessments derived from Worldview 2 data. This mapping uses a single post-fire image to calculate the Normalized Difference Vegetation Index (NDVI). The NDVI image attempts to portray the variation of burn severity within a fire. The severity rating is based upon a composite of the severity to the understory (grass, shrub layers), midstory trees and overstory trees. Because there is often a strong correlation between canopy consumption and soil effects, this algorithm works in many cases for BAER teams whose objective is a soil burn severity assessment. It is not, however, appropriate in all ecosystems or fires. It is expected that BAER teams will adjust the thresholds to match field observations to produce a soil burn severity. Purpose: These data were created by the USDA Forest Service Geospatial Technology and Applications Center (GTAC) to support Burned Area Emergency Response (BAER) teams. Supplemental Information Fire Name: MUSEUM Agency: USDA Forest Service Type of assessment: Emergency Fire size (as mapped): 1961 acres Pre-Fire Imagery Date : none Post-Fire Imagery Date : 2019-07-28 Output Dataset Projection: WGS_1984_UTM_Zone_12N Datum: D_WGS_1984 Spheroid Name: WGS_1984 Mapping Comments: Clouds have been masked from the BARC products. Product List Museum_sbs.tif = Final soil burn severity dataset produced by the USFS BAER team Museum SBS thumb.jpg = JPEG version of the SBS Time Period of Content Multiple Dates/Times Single Date/Time Calendar Date: 2019-07-28 (post-fire image) Currentness Reference: Severity data correspond to the date of the post-fire image. Status Progress: Evaluation of methods in process Maintenance and Update Frequency: As needed Spatial Domain Bounding Coordinates West Bounding Coordinate: 440420.0 East Bounding Coordinate: 447120.0 North Bounding Coordinate: 3904860.0 South Bounding Coordinate: 3899140.0 Keywords Theme Theme Keyword Thesaurus: none Theme Keyword: Wildland Fire Theme Keyword: Wildfire Theme Keyword: Burned Area Emergency Response Theme Keyword: BAER Theme Keyword: dNBR Theme Keyword: Fire Severity Theme Keyword: Burn Severity Theme Keyword: USDA Forest Service Place Place Keyword Thesaurus: none Place Keyword: AZ Place Keyword: MUSEUM Fire Access Constraints: Thresholded, preliminary severity estimates (BARC4 and BARC256) are only delivered to BAER teams. Further distribution is at the discretion of the BAER team leader. Pre-imagery, post-imagery, and unthresholded data are publicly available on https://fsapps.nwcg.gov/afm/baer/download.php. Access to pre-imagery and post-imagery may be limited when sensors other than Landsat or other government remote sensing assets are used due to product licensing restrictions. Use Constraints: There are no restrictions on use, except for reasonable and proper acknowledgement of information sources and limitations as preliminary/draft data. Data Set Credit: USDA Forest Service Native Data Set Environment: GeoTiff Data Quality Information Positional Accuracy Horizontal Positional Accuracy Horizontal Positional Accuracy Report: Sentinel 2 data are terrain corrected using ground control points and processed to an RMSE of less than 1 pixel. Lineage Process Step Process Description: These data products are derived from Worldview 2 data. In this case, a single post-fire image was analyzed to create a Normalized Difference Vegetation Index (NDVI) image. The NDVI image portrays the variation of burn severity within the fire. NDVI is computed for the pre- and post-fire images using the following formula: (NIR Band - red Band) / (NIR Band + red Band) = NBR Notes from the BAER team: "This was a unique fire in that it was part of the Flagstaff Watershed Protection Project (FWPP). Large log decks and slash piles were scattered throughout the fire area. Log decks ranged in size from approximately 300 truckloads to 100 truckloads. Large slash piles from the processing of these trees were found next to the log decks. A large amount of slash was left throughout the treated areas from “lop and scatter” thinning techniques. This fuel loading created areas of high and moderate soil burn severity under “green” and “yellow” (scorched) canopy." General descriptions of the severity classes are below: Unburned / Very low: The area after the fire was indistinguishable from pre-fire conditions. This does not always indicate the area did not burn (i.e. canopy may be occluding the burn signal). Low: Areas of surface fire with little detected change in cover and little detected mortality of the dominant vegetation. Little to no change in the soil color, structure and condition occured. Moderate: This severity class is between low and high and means there is a mixture of detected effects on the dominant vegetation. High: Areas where the canopy has high to complete consumption. Changes to soil structure, color and condition are significant and hydrophobicity may have occured. Spatial Data Organization Information Direct Spatial Reference Method: Raster Raster Object Information Vertical Count: 1 Spatial Reference Information Horizontal Coordinate System Definition Planar Map Projection Map Projection Name: WGS_1984_UTM_Zone_12N Map Projection Parameters Standard Parallel: 0.0 Standard Parallel: 0.0 Longitude of Central Meridian: -111.0 Latitude of Projection Origin: 1.0]];-5120900 -9998100 450445547.391054;-100000 10000;-100000 10000;0.001;0.001;0.001;IsHighPrecisio False Easting: 500000.0 False Northing: 0.0 Planar Coordinate Information Planar Coordinate Encoding Method: row and column Coordinate Representation Abscissa Resolution: 20.0 Ordinate Resolution: 20.0 Planar Distance Units: Meter Geodetic Model Horizontal Datum Name: D_WGS_1984 Ellipsoid Name: WGS_1984 Semi-major Axis: 6378137.0 Denominator of Flattening Ratio: 298.257223563 Distribution Information Resource Description: Downloadable Data Metadata Reference Information Metadata Date: 2019-08-05 Metadata Contact Contact Information Contact Organization Primary Contact Organization: USDA Forest Service, Geospatial Technology and Applications Center (GTAC) Contact Person: Justin Epting Contact Address Address Type: mailing address Address: 2222 W. 2300 S. City: Salt Lake City State or Province: UT Postal Code: 84119 Contact Voice Telephone: 801 975 3755 Contact Electronic Mail Address: baerimagery@fs.fed.us