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Homepage » Fuel » Forest Canopy Height

Forest Canopy Height

LANDFIRE's (LF) Forest Canopy Height (CH) describes the average height of the top of the vegetated canopy. CH measurement units are meters * 10 and extracted from Existing Vegetation Height (EVH). CH is assigned the midpoint of the EVH forested classes at non-disturbed locations. These products are provided for forested areas only.

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

In LF Remap, Fuel Vegetation Type, Fuel Vegetation Cover, and Fuel Vegetation Height are incorporated in place of EVT, EVC, and EVH in fuel model assignment. The fuel vegetation data are pre-disturbance at disturbance locations and EVT at non-disturbance locations. The pre-disturbance scenario is represented by the vegetation that existed before the event occurred. Reporting of pre-disturbance helps to calculate CH, via linear equations derived from Forest Vegetation Simulator scenario outputs, by informing how much or little and what type of fuels are being acted on by the event.

Another improvement in LF Remap fuels products in disturbed areas is that have been adjusted to expected 2019 or 2020 vegetation conditions for disturbances that have occurred between 2010 and 2016, making the fuels products 2019 capable or 2020 capable. LF Remap CH is assigned using FDist capable fuels, as a result it has "capable fuels" functionality

Used in the calculation of Canopy Bulk Density and Canopy Base Height, CH supplies information to fire behavior models to provide input in the spotting model and calculate wind reductions.

Product availability

Attribute Data Dictionary (LF 2.0.0)PDF
Attribute Data Dictionary (LF 1.4.0)PDF

The comma separated value (CSV) file used for the raster attribute table is included in the LF product download in database file (DBF) format.
(Why is the CSV important?)

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