GAP National Land Cover Data - Wyoming

Jul 27, 2011
Description:
This dataset combines the work of several different projects to create a seamless data set for the contiguous United States. Data from four regional Gap Analysis Projects and the LANDFIRE project were combined to make this dataset. In the Northwestern United States (Idaho, Oregon, Montana, Washington and Wyoming) data in this map came from the Northwest Gap Analysis Project. They used multi-season satellite imagery (Landsat ETM+) from 1999-2001 in conjunction with digital elevation model (DEM) derived datasets (e.g. elevation, landform) to model natural and semi-natural
vegetation. Vegetation classes were drawn from NatureServe's Ecological System Classification (Comer et al. 2003). Additionally,  the project included land use classes that were employed to describe areas where natural vegetation has been altered. In many areas of the country these classes were derived from the National Land Cover Dataset (NLCD). For the majority of classes and, in most areas of the country, a decision tree classifier was used to discriminate ecological system types. In some areas of the country, more manual techniques were used to discriminate small patch systems and systems not distinguishable through topography.
Data Provided By:
Gap Analysis Program
Content date:
1999-2001
Citation:
ftp://ftp.gap.uidaho.edu/outgoing/National/National_landcover.zip

http://gap.uidaho.edu/index.php/gap-home/Northwest-GAP
Spatial Resolution:
30.0 (meter)
Contact Organization:
National Gap Analysis Program
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Appropriate scale for these data is 1: 100,000 or smaller. The user assumes responsiblity when using this dataset.
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About the Uploader

Conservation Biology Institute

The Conservation Biology Institute (CBI) provides scientific expertise to support the conservation and recovery of biological diversity in its natural state through applied research, education, planning, and community service.