Landfire Biophysical Settings (Alaska) (Image Service)

Metadata Updated: December 3, 2020

The LANDFIRE fuel data describe the composition and characteristics of both surface fuel and canopy fuel. Specific products include fire behavior fuel models, canopy bulk density (CBD), canopy base height (CBH), canopy cover (CC), canopy height (CH), and fuel loading models (FLMs). These data may be implemented within models to predict the behavior and effects of wildland fire. These data are useful for strategic fuel treatment prioritization and tactical assessment of fire behavior and effects.DATA SUMMARY: The biophysical settings (BpS) data layer represents the vegetation that may have been dominant on the landscape prior to Euro-American settlement and is based on both the current biophysical environment and an approximation of the historical disturbance regime. It is a refinement of the environmental site potential map; in this refinement, we attempt to incorporate current scientific knowledge regarding the functioning of ecological processes - such as fire - in the centuries preceding non-indigenous human influence. Map units are based on NatureServe's Ecological Systems classification, which is a nationally consistent set of mid-scale ecological units (Comer and others 2003). LANDFIRE's use of these classification units to describe biophysical settings differs from their intended use as units of existing vegetation. As used in LANDFIRE, map unit names represent the natural plant communities that may have been present during the reference period. Each BpS map unit is matched with a model of vegetation succession, and both serve as key inputs to the LANDSUM landscape succession model (Keane and others 2002). The LANDFIRE BpS data layer is similar in concept to potential natural vegetation group layers produced in efforts related to fire regime condition class (Schmidt and others 2002). The BpS data layer is used in LANDFIRE to depict reference conditions of vegetation across landscapes. The actual time period for this data set is a composite of both the historical context provided by the fire regime and vegetation dynamics models and the more recent field and geospatial data used to create it. The weather data used in DAYMET were compiled from 1980 to 1997.�Metadata and Downloads

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Public: This dataset is intended for public access and use. License: See this page for license information.

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Metadata Created Date December 3, 2020
Metadata Updated Date December 3, 2020

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date December 3, 2020
Metadata Updated Date December 3, 2020
Publisher U.S. Forest Service
Unique Identifier Unknown
Data First Published 2019-08-09
Data Last Modified 2020-06-11
Category geospatial
Public Access Level public
Bureau Code 005:96
Metadata Context
Schema Version
Catalog Describedby
Homepage URL
Metadata Type geospatial
Program Code 005:059
Source Datajson Identifier True
Source Hash 97083a036c072c1dbb44bda64e08763401469c56
Source Schema Version 1.1
Spatial 175.5077,49.0571,-117.2913,67.6013

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