Title:
Originator:
Consortium Lead:
Abstract:
These data can be used in a geographic information system (GIS) for any number of purposes such as assessing wildlife habitat, water quality, pesticide runoff, land use change, etc. The State data sets are provided with a 300 meter buffer beyond the State border to facilitate combining the State files into larger regions. The user must have a firm understanding of how the datasets were compiled and the resulting limitations of these data.
The National Land Cover Database 2001 land
cover layer was produced through a cooperative project conducted by the
Multi-Resolution Land Characteristics (MRLC) Consortium. The MRLC Consortium is a partnership of
federal agencies (www.mrlc.gov), consisting of the U.S. Geological Survey
(USGS), the National Oceanic and Atmospheric Administration (NOAA), the U.S.
Environmental Protection Agency (EPA), the U.S. Department of Agriculture
(USDA), the U.S. Forest Service (USFS), the National Park Service (NPS), the
U.S. Fish and Wildlife Service (FWS), the Bureau of Land Management (BLM) and
the USDA Natural Resources Conservation Service (NRCS).
One of the primary goals is to generate a
current, consistent, seamless, and accurate
This landcover map and all documents pertaining to it are
considered "provisional" until a formal accuracy assessment can be
conducted. For a detailed definition and
discussion on MRLC and the NLCD 2001 products, refer to Homer et al. (2004) -http://www.mrlc.gov/pdfs/July_PERS.pdf ; and http://www.mrlc.gov/mrlc2k.asp. The
NLCD 2001 was created by partitioning the
Format: The land cover data files are provided as a
GeoTIFF image – one image for each state. The land cover data sets are
single band raster images.
Spatial Reference Information: Universal Transverse Mercator, North
American Datum 1983.
For states with multiple UTM zones, a predominant UTM zone was chosen for the NLCD
state map.
