|Date(s):||Coverage Availability/Geographic Extent:||Footprint:||Source(s):|
|2001||Statewide coverage||State||USGS (National Mapping, Biological Resources, and Water Resources Divisions), US EPA, the U.S. Forest Service, and the National Oceanic and Atmospheric Administration.|
The full National Land Cover Database 2001 data set can be downloaded directly.
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Land Use - Land Cover
|Recommended Uses:||Basemap, Research|
NLCD 2001 improves upon NLCD 1992 in three important ways. Whereas NLCD 1992 was simply a land-cover data set, NLCD 2001 is a land-cover database comprised of three elements: land cover, impervious surface and canopy density.
Second, NLCD 2001 used improved classification algorithms which have resulted in data with more precise rendering of spatial boundaries between the 16 classes (an additional nine classes are available in coastal areas and another four classes in Alaska only).
Third, NLCD 2001 also includes Alaska, Hawaii, and Puerto Rico. NLCD 1992 was restricted to the conterminous United States.