Abstract:
This dataset portrays 141 forest types across the
contiguous United States. These data were derived from MODIS composite
images from the 2002 and 2003 growing seasons in combination with nearly
100 other geospatial data layers, including elevation, slope, aspect,
ecoregions, and PRISM climate data.
The dataset was developed as a collaborative effort
between the USFS Forest Inventory and Analysis and Forest Health
Monitoring programs and the USFS Remote Sensing Applications Center.
Purpose:
The purpose of this dataset is to portray broad
distribution patterns of forest cover in the United States and provide
input to national scale modeling projects. The data should not be
displayed at scales smaller than 1:2,000,000. Independent accuracy
assessments were conducted using a 10% holdout of the training data, and
are available through the data source contact.
Complete metadata is available on the
USFS website in HTML format.