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LANDFIRE 2024 Anderson Fire Behavior Fuel Model (FBFM13) CONUS

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 08:29 PM | Dataset Last Updated: March 18, 2026 at 12:00 AM
LANDFIRE's 2024 Update (LF 2024) 13 Anderson Fire Behavior Fuel Models (FBFM13) product represents distinct distributions of fuel loadings found among surface fuel components (live and dead), size classes, and fuel types (Anderson 1982). The fuel models are described by the most common fire carrying fuel type (grass, brush, timber, or slash), loading and surface area-to-volume ratio by size class and component, fuel bed depth, and moisture of extinction. LF FBFM13 can be used for fire spread related characteristic models. To create the FBFM13 product, expert rulesets were developed to understand how different types of disturbance would change pre-disturbance fuel models to post disturbance fuels, based on the severity and time since disturbance. These rulesets are represented in the LF Total Fuel Change (LFTFC) Tool and Database. In LF 2024, non-disturbed fuels are the same as LF 2016 Remap for natural vegetation. To designate disturbed areas where FBFM13 is modified, the aggregated Annual Disturbance products from 2015 to 2024 in the LF Fuel Disturbance (FDist) product are used. All existing disturbances between 2015-2024are represented in LF 2024, and the products are intended to be used in 2025 (the year of release). When using any product from the LF 2024 fuel product suite, users should consider adjusting fuel layers for disturbances that occurred after the end of the 2024 fiscal year (after October 1st, 2024). Disturbances that occurred after the end of the 2024 fiscal year are not accounted for within LF 2024 fuel products.

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