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Product Description

Image showing fuel vegetation type over the upper NW corner of the U.S.This page includes a general description of the product, please consult the schedule and version pages for information specific to each release.

The LANDFIRE (LF) fuels vegetation products describe the elements of fuels vegetation for each LF vegetation production unit. Fuel Vegetation Type (FVT) represents a modified version of Existing Vegetation Type (EVT). FVT more accurately leverages fuel transition assignments related to disturbed areas by re-establishing pre-disturbance vegetation. Linking disturbed areas to pre-disturbance EVTs allows fuel model transition assignments to properly align with logic developed from Fuels Calibration Workshops, giving more accurate representations during fire behavior analysis.

FVT was developed using the full suite of LF vegetation releases and the most recent 10 years of Annual Disturbance products. The FVT product is then evaluated through a series of QA/QC measures ensuring lifeform of the vegetation type assignment matches the lifeform of associated FVT layers.

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.

LF uses FVT in the development of the fuel products.

 

Fuel Vegetation Type Resources

Product Description

This page includes a general description of the product, please consult the schedule and version pages for information specific to each release.

The LANDFIRE (LF) fuels vegetation products describe the elements of fuels vegetation for each LF vegetation production unit. This product represents pre-disturbance fuels where disturbance has occurred over the last 10 years. Fuel Vegetation Height (FVH) represents a modified version of Existing Vegetation Height (EVH). LF 2016 Remap EVH is mapped as continuous estimates of canopy height for tree, shrub, and herbaceous lifeforms. To translate continuous EVH values into fuel model assignments, EVH values were binned to correspond with the bins for previous LF versions.

FVH was developed using the full suite of LF vegetation releases and the most recent ten years of disturbance data. FVH more accurately leverages fuel transition assignments related to disturbed areas to properly align with logic developed from Fuels Calibration Workshops.

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.

Modeling Dynamic Fuels with an Index System (MoD-FIS)- refined FVH classification based upon current estimates of FVH from Landsat imagery for the current growing season.

LF uses FVH in the development of the fuel products.

 

Image showing fuel vegetation height in the upper NW corner of the U.S.
FAQs

No, FVH represents pre-disturbance fuels before they are run through the LFTFC tools. For current fuels, look at CC, CH, CBH, CBD, and FBFM40 and FBFM13.

Fuel Vegetation Height Resources

Product Description

This page includes a general description of the product, please consult the schedule and version pages for information specific to each release.

The LANDFIRE (LF) fuels vegetation products describe the elements of fuels vegetation for each LF vegetation production unit. This product represents pre-disturbance fuels where disturbance has occurred over the last 10 years. 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.

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.

Modeling Dynamic Fuels with an Index System (MoD-FIS)- refined FVC classification based upon current estimates of FVC from Landsat imagery for the current growing season.

LF uses FVC in the development of the fuel products.

 

Image showing fuel vegetation cover in the upper NW corner of the U.S.
FAQs

No, FVC represents pre-disturbance fuels before they are run through the LFTFC tools. For current fuels, look at CC, CH, CBH, CBD, and FBFM40 and FBFM13.

Fuel Vegetation Cover Resources

Product Description

Image showing canopy base height colors over the upper NW corner of the U.S.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 Base Height (CBH) describes the average height from the ground to a forest stand's canopy bottom. Specifically, it is the lowest height in a stand at which there is enough forest canopy fuel to propagate fire vertically into the canopy. CBH unit measurements are meters * 10. These products are provided for forested areas only. Canopy Base Height (CBH) and Canopy Bulk Density (CBD) are calculated using the program FuelCalc designed by Elizabeth Reinhardt of the Missoula Fire Sciences Laboratory. This program ingests plot data (including species, diameter at breast height (DBH), height, height to live crown, canopy cover, and trees per acres) and computes CBD using species-specific allometric relationships. CBH is assumed to equal the height at which CBD becomes 0.012 kg m3.

CBH first incorporated Annual Disturbance products during LF 2008 production. The introduction of this information allowed for informed changes to the assigned CBH from disturbance type, severity, and time since the disturbance.

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.

CBH provides information for fire behavior models to determine areas in which a surface fire is likely to transition to a crown fire.

 

Forest Canopy Base Height Resources

Product Description

Image showing canopy bulk density in the upper corner of the U.S.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 m3 * 100. These products are provided for forested areas only. Canopy Base Height (CBH) and Canopy Bulk Density (CBD) are calculated using the program FuelCalc designed by Elizabeth Reinhardt of the Missoula Fire Sciences Laboratory. This program ingests plot data (including species, diameter at breast height (DBH), height, height to live crown, canopy cover, and trees per acres) and computes CBD using species-specific allometric relationships. CBH is assumed to equal the height at which CBD becomes 0.012 kg m3.

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.

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.

 

Forest Canopy Bulk Density Resources