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Rapid Assessment of Vegetation Condition after Wildfire (RAVG) Canopy Cover Percent Change (Image Service)

Metadata Updated: June 29, 2024

The USDA Forest Service Rapid Assessment of Vegetation Condition after Wildfire (RAVG) program produces geospatial data and maps of post-fire vegetation condition using standardized change detection methods based on Landsat or similar multispectral satellite imagery. RAVG data products characterize vegetation condition within a fire perimeter, and include estimates of percent change in basal area (BA), percent change in canopy cover (CC), and a 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"). National mosaics of each thematic product are prepared annually. The associated burned area perimeters are available via the Enterprise Data Warehouse (EDW, see https://data.fs.usda.gov/geodata/edw/datasets.php). Assessment type (initial or extended assessment) for each fire is included as an attribute in the perimeter dataset.

Access & Use Information

Public: This dataset is intended for public access and use. License: Creative Commons Attribution

Downloads & Resources

Dates

Metadata Created Date May 31, 2024
Metadata Updated Date June 29, 2024

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date May 31, 2024
Metadata Updated Date June 29, 2024
Publisher U.S. Forest Service
Maintainer
Identifier https://www.arcgis.com/home/item.html?id=101dd0bfdd4a4b05a272ec38bd865058
Data First Published 2024-05-06
Data Last Modified 2024-06-11
Category geospatial
Public Access Level public
Bureau Code 005:96
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 78eef0fe-b236-4c26-a50f-0238c29d4c9b
Harvest Source Id d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
Harvest Source Title USDA JSON
Homepage URL https://data-usfs.hub.arcgis.com/datasets/usfs::rapid-assessment-of-vegetation-condition-after-wildfire-ravg-canopy-cover-percent-change-image-service
License https://creativecommons.org/licenses/by/4.0/
Metadata Type geospatial
Old Spatial -126.8944,27.5788,-72.5694,51.2789
Program Code 005:059
Source Datajson Identifier True
Source Hash e43d0d7a60c2a3e2b49b28b6b8f9cbb22418664149f179ae7e9eda079f3ac98d
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -126.8944, 27.5788, -126.8944, 51.2789, -72.5694, 51.2789, -72.5694, 27.5788, -126.8944, 27.5788}

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