These data represent a rapid assessment for the 2000 fire season within the Great Basin National Park .  Fire perimeter and preliminary analysis for burn severity (differenced normalized burn ratio) are provided for the Phillips Ranch fire.
	
Analysis was done using Landsat Thematic Mapper data:
Path/Row      39/33  
Data Sets:     Rapid Assessment
Landsat 7        Pre Fire    June 20, 2000 
Landsat 7        Post Fire   June 23, 2001


These Landsat images have been geometrically and terrain corrected from the NLAPS (National Landsat Archive Production System) and have been further processed with bands 1-5 and 7 converted to at-satellite reflectance.

The Differenced Normalized Burn Ration (DNBR) data were Reprojected from Albers Conical Equal Area Projection to UTM using cubic convolution resampling:

	UTM    zone11
	Datum - NAD27
	Spheroid - Clarke 1866
	Pixel Size - 30 x 30 meters

Subset Corner Coordinates (UTM meters, center of pixel):

		ULX	726073		LRX	741523
		ULY	4316301		LRY	4299111

Geographic Bounding Box:

		North  38 58 06 N		South  38 48 34 N
		West  114 23 47 W		East    114 12 45 W


Perimeters were digitized automatically.   Seed value 499, distance 425.

Products generated from data analysis are provided as ArcView project 

Project name:  grba00.apr   (Great Basin National Park, 2000 fire)
Data themes and theme names contained within these projects are:
 
* Dnbr_39-33  Arc/Grid of Differenced Normalized Burn Ratio for path/row 39-33
* Grbaprm.shp  Shapefile of fire perimeter
* Grba00_postm.tif  3-band geotiff subset, Landsat 7 bands 7,4,3 (rgb) post fire.
* Grba00_pretm.tif  3-band geotiff subset, Landsat 7 bands 7,4,3 (rgb) pre fire.
* Grba00_dnbr_rscl.tif (color-coded burn severity, yellow to orange = low to high,  default thresholds <100, 100 - 660, >660).  Note: Clouds appear as high severity burn)