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Estimated and Projected Impervious Cover in the Southeastern United States
Downloadable shape and associated GIS files with estimated (year 2000) and projected (2010 to 2030 depending on data available by state) impervious cover as percent of total area for the 8 U.S. Southeastern states by 12 or 14 Hydrologic Unit Code (HUC). The methods for estimation and projection of impervious cover are described in: Estimating and Projecting Impervious Cover in the Southeastern United States, U.S. Environmental Protection Agency, Athens, Georgia, Publication No. EPA/600/R-05/061. (pdf, 133 pp., 3.2 mb)
(about pdf). The GIS zipped files are available on the
ftp site linked below. There is a separate PDF metadata
file
for each
state (about pdf).
Alabama
alabama_ic.ZIP (44,306
KB)
al_metadata.pdf (pdf, 2 pp., 84 KB, about pdf )
Florida
florida_ic.ZIP (15,458
KB)
fl_metadata.pdf (pdf, 2 pp.,
84 KB, about pdf )
Georgia
georgia_ic.ZIP (27,842
KB)
ga_metadata.pdf (pdf, 2 pp., 81 KB, about pdf )
Kentucky
kentucky_ic.ZIP (17,327
KB)
ky_metadata.pdf (pdf, 2 pp., 85 KB, about pdf )
Mississippi
mississippi_ic.ZIP (30,518
KB)
ms_metadata.pdf (pdf, 2 pp., 84 KB, about pdf )
North Carolina
northcarolina_ic.ZIP (26,321 KB)
nc_metadata.pdf (pdf, 2 pp., 84 kb) (about pdf)
South Carolina
southcarolina_ic.ZIP (6,482 KB)
sc_metadata.pdf (pdf, 2 pp.,
84 kb, about pdf )
Tennessee
tennessee_ic.ZIP (17,364
KB)
tn_metadata.pdf (pdf, 2
pp., 83 kb, about
pdf )
The following shapefiles are the
results of the 'Test Data Set' conducted for Frederick County, Maryland
and
Atlanta, Georgia. We manually estimated impervious cover for 13
HUCs in the Atlanta area and 56 complete or partial HUCs in
Frederick County, Maryland using digitial ortho quarter quads (DOQQs)
from the U.S. Geological Survey. The details of this part of the
project are also contained in the EPA report accessible in the the
top paragraph of this page.
Estimated
% impervious cover for 13 HUCs in the Atlanta Area
Atlanta Impervious Cover Test Data Set (150 KB)
Estimated
% impervious cover for Frederick County, Maryland
Fredirick County, Maryland Impervious Cover Test Data Set (151 KB)