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Forest Canopy Cover

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LANDFIRE's (LF) Forest Canopy Cover (CC) describes the percent cover of the tree canopy in a stand. Specifically, canopy cover describes the vertical projection of the tree canopy onto an imaginary horizontal surface representing the ground's surface. At non-disturbed locations, CC is assigned the midpoint of the Existing Vegetation Cover (EVC) forested classes. These products are provided for forested areas only.

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

In LF 2016 Remap, Fuel Vegetation Type, Fuel Vegetation Cover, and Fuel Vegetation Height are incorporated in place of EVC, Existing Vegetation Type (EVT), and Existing Vegetation Height 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. Pre-disturbance is the vegetation that existed before the event occurred. Reporting of pre-disturbance helps to calculate CC, 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 they 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 CC is assigned using FDist capable fuels, as a result it has "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.

Used in the calculation of Canopy Bulk Density and Canopy Base Height, CC supplies information to fire behavior models to determine the probability of crown fire initiation, provide input in the spotting model, calculate wind reductions, and calculate fuel moisture conditioning.

Product availability

Attribute Data Dictionary (LF 2.0.0, LF 2.1.0)PDF
Attribute Data Dictionary (LF 1.4.0)PDF

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.

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