This page includes a general description of the product, please consult the schedule and version pages for information specific to each release.LANDFIRE's (LF) Forest Canopy Bulk Density (CBD) describes the density of available canopy fuel in a stand. It is defined as the mass of available canopy fuel per canopy volume unit. CBD unit measurements are kg m-3 * 100. These products are provided for forested areas only.
CBD first incorporated Annual Disturbance products during LF 2008 production. The introduction of this information allowed for informed changes to the assigned CBD from disturbance type, severity, and time since the disturbance.
Beginning with LF 2016 Remap, and beyond, an improvement for fuels products in disturbed areas was implemented. Fuels are now adjusted to expected current year vegetation conditions for disturbances that have occurred between certain select years that vary by the version. Making the fuels products “capable to X year fuels” or “capable fuels”. Beginning with LF 2022, capability is implied in the naming convention.
LF 2016 Remap and beyond includes a 90-kilometer buffer along the 1,500 miles of the eastern and southern borders AK shares with Canada. Then with the LF 2020 update, and future updates, for the Conterminous United States (CONUS) a 90-kilometer buffer into Mexico is also included.
CBD supplies information for fire behavior models, such as FARSITE, to determine the initiation and spread characteristics of crown fires across landscapes.
Attribute Data Dictionary
Comma separated value (CSV) files can be found in the LF Library.Download Data