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Layer: Burn Severity Large Fires (ID: 20)

Name: Burn Severity Large Fires

Display Field: name

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Burn Severity was produced using a BARC image along with verification from an aerial flight. The Burned Area Reflectance Classification (BARC) image was provided by RSAC (Remote Sensing Application Center) based on a Landsat image from 20130629. This image was partially obscured by clouds especially in the south. The BARC image was then adjusted based on information received from the BAER specialists after a helicopter flight. Unfortunately no field testing could be done on this fire to verify soil burn severity, but based on the aerial flight it was determined that the BARC image was under-representing the high burn severity. The original BARC256 thresholds were:0 - 84- Unchanged85 - 93- Low94 - 119- Moderate120 - 196- High(>196 no data)The BARC was then split up by HUC6 watershed and the eastern portion of the fire in the Rio Mora/Pecos River was kept with the original thresholds (except Unchanged and Low were grouped together). For the rest of the fire the thresholds were changed to:0 - 84- Low/Unchanged85 - 93- Moderate94 - 196- HighEssentially Low was merged with Unchanged and everything else moved up one severity class. The BARC image was then simplified using Focal Statistics- a majority filter in a 3x3 window, as recommended by RSAC.The Burn Severity was finalized on 20130705.

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