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National Land Cover Database 2001 (NLCD01) Imperviousness Layer Tile 4,...
This 30-meter resolution data set represents the imperviousness layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to... -
National Land Cover Database 2001 (NLCD01) Imperviousness Layer Tile 4,...
This 30-meter resolution data set represents the imperviousness layer for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to... -
HYDROLOGY, Allegheny County, PA
Hydrology data include spatial datasets and data tables necessary for documenting the hydrologic procedures for estimating flood discharges for a Flood Insurance Study, which... -
HYDROLOGY, HOUSTON COUNTY, ALABAMA
Hydrology data include spatial datasets and data tables necessary for documenting the hydrologic procedures for estimating ALood discharges for a ALood Insurance Study, which... -
HYDROLOGY, Lawrence County, ARKANSAS
Hydrology data include spatial datasets and data tables necessary for documenting the hydrologic procedures for estimating flood discharges for a Flood Insurance Study, which... -
HYDROLOGY, HOUSTON COUNTY, ALABAMA
Hydrology data include spatial datasets and data tables necessary for documenting the hydrologic procedures for estimating ALood discharges for a ALood Insurance Study, which... -
Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United...
This data set represents the mean percent impervious surface from the Imperviousness Layer of the National Land Cover Dataset 2001 (LaMotte and Wieczorek, 2010), compiled for...