Enhanced National Land Cover Data 1992 revised with 2000 population data to indicate urban development between 1992 and 2000 (NLCDep0905)

This 30-meter resolution raster data set of land cover for the
conterminous United States ("NLCDep0905") was designed to
describe conditions representative of the year 2000 and is the
result of overlaying enhanced 1992 National Land Cover Data with
2000 population data at the block group geographic level. Any
area (excluding water, developed land, or wetlands) with
population density of at least 1,000 people per square mile was
reclassified as "newly urbanized" land in the derivative
product. Areas of water, developed land, or wetlands existing
in the original national land-cover data set were preserved.

This data set has been superseded by the one called "Enhanced
National Land Cover Data 1992 revised with 1990 and 2000
population data to indicate urban development between 1992 and
2000" ("NLCDep0306") dated March 2006. The approach used in
developing NLCDep0905 was determined to have misclassified lands
that already were urban in 1990 as newly urbanized and therefore
greatly overrepresented new urban land. Although the NLCDep0905
data set has been superseded, some water-quality assessment
projects utilized this data set to characterize basins before
the NLCDep0306 data set was developed. Therefore, the NLCDep0905
is being published to document the land cover data set used in
these analyses.