RAVG
Rapid Assessment of Vegetation Condition After Wildfire
The Rapid Assessment of Vegetation Condition after Wildfire (RAVG) program produces data estimating post-fire vegetation conditions on National Forest System (NFS) lands, including basal area loss and canopy cover loss. These data products support a data-driven process to inform prioritization and funding decisions of post-fire reforestation efforts.
Timeline
30 - 45 days after fire containment
Learn More
Data Access
- Direct Download
- Interactive Viewer*
- Request to Map RAVG Fires (Only Dept. of Interior employees can make a request)
*May only contain a subset of the data
Data Available
2012-2021
Audience
The primary audience for RAVG data and products are Regional
Silviculturists who need to communicate yearly reforestation
and restoration needs to decision makers for specific funding requests.
Mapping Method
RAVG Severity layers are created by thresholding and regression modeling based on hundreds of field plots.
Deliverables
- Pre- and post-fire satellite imagery
- Burn area boundary shapefile
- Differenced Normalized Burn Ratio (dNBR) and Relativized dNBR (continuous)
- Burn Severity layer (Composite Burn Index)
- % Change in Basal area layer
- % Change in Canopy cover layer
- Metadata
- Summary table
- Visualization products