Map: Methodology and Interpretation | Water-Quality Vulnerability in the Ozarks using Landscape Ecology Metrics: Upper White River Browser (v2.0)

Map: Methodology and Interpretation

Base Data Maps > National Land-Cover Dataset > Methodology and Interpretation

Methodology and Interpretation

National Land-Cover Dataset
The Upper White River study area (21,848 km²) has a variety of land-cover types throughout. Where calculations and models required greater specificity than that of the customized 5-class land-cover map, the National Land-Cover Dataset (NLCD) was used. The NLCD is a land-cover data product derived from images acquired by Landsat's Thematic Mapper sensor, as well as a number of ancillary data sources, producing a view of land-cover in the conterminous United States, circa 1992. Applicable portions of the NLCD are used to assess landscape condition among four 8-digit Hydrologic Unit Code (HUC) regions and 244 smaller subwatersheds of varying sizes, in an effort to determine the vulnerability of water quality throughout the area.

National Land-Cover Dataset map

Dataset FGDC Metadata