The LANDFIRE (LF) fuels vegetation products describe the elements of fuels vegetation for each LF vegetation production unit. Fuel Vegetation Cover (FVC) represents a modified version of Existing Vegetation Cover (EVC). LF 2016 Remap EVC is mapped as continuous estimates of canopy cover for tree, shrub, and herbaceous lifeforms with a potential range from 0-100 percent. To translate continuous EVC values into fuel model assignments, EVC values were binned to correspond with the bins for previous LF versions.
FVC was developed using the full suite of LF vegetation releases and the most recent ten years of disturbance data. FVC more accurately leverages fuel transition assignments related to disturbed areas to properly align with logic developed from Fuels Calibration Workshops.
A significant refinement to the LF Remap process for FVC and other fuel products was adopted to more accurately represent vegetation within disturbed areas for fuels use, allowing LF Remap to provide "capable fuels" products. What this means is LF Remap fuels products in disturbed areas have been revised to expected 2019 or 2020 vegetation conditions for disturbances that occurred between 2009-2016 or 2010-2016, respectively, making the fuels products 2019 or 2020 capable. This new process considers all the existing disturbances included in LF Remap and adjusts the TSD for these to the effective year (2019 or 2020 in this example).
These refinements improve performance of fire behavior modeling and reduce the need for local LF users to update the vegetation and fuel conditions to represent current conditions. LF Remap fuel products in areas mapped as disturbed within the past 10 years are delivered with this "capable fuels" functionality.
LF 2019 Limited products focus on updating areas of change/disturbance that occurred since the completion of LF 2016 Remap, including the years of 2017, 2018, and 2019. The non-disturbed vegetation will be identical to LF Remap. Fuel products in LF 2019L pixels mapped as disturbed by LF from 2011–2019 have been transitioned to estimate conditions in 2021. These products will include capable fuels, bringing the data to a 2021 effective condition.
LF uses FVC in the development of the fuel products.
The raster attribute tables for LF products are served in database file (DBF) format.
(Why is the DBF important?)
Comma separated value (CSV) files can be found in the LF Library.