The ability of researchers to accurately assess the extent of impervious and pervious developed surfaces, e.g., turf grass, using land-cover data derived from Landsat satellite imagery in the Chesapeake Bay watershed is limited due to the resolution of the data and systematic discrepancies between developed land-cover classes, surface mines, forests, and farmlands. Estimates of impervious surface and turf grass area in the Mid-Atlantic, United States that were based on 2006 Landsat-derived land-cover data were substantially lower than estimates based on more authoritative and independent sources. New estimates of impervious surfaces and turf grass area derived using land-cover data combined with ancillary information on roads, housing units, surface mines, and sampled estimates of road width and residential impervious area were up to 57 and 45% higher than estimates based strictly on land-cover data. These new estimates closely approximate estimates derived from authoritative and independent sources in developed counties.
|Title||Estimating the extent of impervious surfaces and turf grass across large regions|
|Authors||Peter R. Claggett, Frederick M. Irani, Renee L. Thompson|
|Publication Subtype||Journal Article|
|Series Title||Journal of the American Water Resources Association|
|Record Source||USGS Publications Warehouse|
|USGS Organization||Eastern Geographic Science Center|