Rapid Assessment of Vegetation Condition: Perimeters - PostfireVegChg (Feature Layer)

The USDA Forest Service Rapid Assessment of Vegetation Condition after Wildfire (RAVG) program produces geospatial and related data representing post-fire vegetation condition by means of standardized change detection methods based on Landsat or similar multispectral satellite imagery. RAVG data products characterize the impact of disturbance (fire) on vegetation within a fire perimeter, and include estimates of percent change in live basal area (BA), percent change in canopy cover (CC), and the standardized composite burn index (CBI). Standard thematic products include 7-class percent change in basal area (BA-7), 5-class percent change in canopy cover (CC-5), and 4-class CBI (CBI-4). Contingent upon the availability of suitable imagery, RAVG products are prepared for all wildland fires reported within the conterminous United States (CONUS) that include at least 1000 acres of forested National Forest System (NFS) land (500 acres for Regions 8 and 9 as of 2016). Data for individual fires are typically made available within 45 days after fire containment ("initial assessments"). Late-season fires, however, may be deferred until the following spring or summer ("extended assessments"). Annual national mosaics of each thematic product are prepared at the end of the fire season and updated, as needed, when additional fires from the given year are processed. The annual mosaics are available via the Raster Data Warehouse (RDW, see https://apps.fs.usda.gov/arcx/rest/services/RDW_Wildfire). A combined perimeter dataset, including the burn boundaries for all published Forest Service RAVG fires from 2012 to the present, is likewise updated as needed (at least annually).

Data and Resources

Field Value
accessLevel public
bureauCode {005:96}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
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identifier https://www.arcgis.com/home/item.html?id=d5cafd44cf404bb9bd66b3e40dd143cb&sublayer=0
issued 2023-08-24
landingPage https://data-usfs.hub.arcgis.com/datasets/usfs::rapid-assessment-of-vegetation-condition-perimeters-postfirevegchg-feature-layer
license https://creativecommons.org/licenses/by/4.0/
metadata_type geospatial
modified 2024-05-31
old-spatial -150.5292,29.0484,-76.9730,60.7294
programCode {005:059}
progressCode onGoing
publisher U.S. Forest Service
resource-type Dataset
source_datajson_identifier true
source_hash 2561091fa5a866234df2d72b6d3438e8ab0bc3fe7a713905a886ed4bd4c81530
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-150.5292, 29.0484], [-150.5292, 60.7294], [-76.9730, 60.7294], [-76.9730, 29.0484], [-150.5292, 29.0484]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • basal-area
  • biota
  • burn-area-boundary
  • burn-severity
  • canopy-cover
  • cbi
  • composite-burn-index
  • conus
  • perimeter
  • ravg
  • united-states
  • vegetation-condition
  • wildfire
  • wildland-fire
isopen True
license_id cc-by
license_title Creative Commons Attribution
license_url http://www.opendefinition.org/licenses/cc-by
maintainer USFSEnterpriseContent
maintainer_email SM.FS.data@usda.gov
metadata_created 2025-09-23T22:21:46.561903
metadata_modified 2025-09-23T22:21:46.561909
notes The USDA Forest Service Rapid Assessment of Vegetation Condition after Wildfire (RAVG) program produces geospatial and related data representing post-fire vegetation condition by means of standardized change detection methods based on Landsat or similar multispectral satellite imagery. RAVG data products characterize the impact of disturbance (fire) on vegetation within a fire perimeter, and include estimates of percent change in live basal area (BA), percent change in canopy cover (CC), and the standardized composite burn index (CBI). Standard thematic products include 7-class percent change in basal area (BA-7), 5-class percent change in canopy cover (CC-5), and 4-class CBI (CBI-4). Contingent upon the availability of suitable imagery, RAVG products are prepared for all wildland fires reported within the conterminous United States (CONUS) that include at least 1000 acres of forested National Forest System (NFS) land (500 acres for Regions 8 and 9 as of 2016). Data for individual fires are typically made available within 45 days after fire containment ("initial assessments"). Late-season fires, however, may be deferred until the following spring or summer ("extended assessments"). Annual national mosaics of each thematic product are prepared at the end of the fire season and updated, as needed, when additional fires from the given year are processed. The annual mosaics are available via the Raster Data Warehouse (RDW, see https://apps.fs.usda.gov/arcx/rest/services/RDW_Wildfire). A combined perimeter dataset, including the burn boundaries for all published Forest Service RAVG fires from 2012 to the present, is likewise updated as needed (at least annually).
num_resources 7
num_tags 22
title Rapid Assessment of Vegetation Condition: Perimeters - PostfireVegChg (Feature Layer)