Combining satellite data with ancillary data to produce a refined land-use/land-cover map

Water-Resources Investigations Report 97-4203
National Water-Quality Assessment Program Western Lake Michigan Drainages



As part of the U.S. Geological Survey's National Water-Quality Assessment Program in the Western Lake Michigan Drainages Study Unit, a current map of land use and land cover is needed to gain a better understanding of how land use and land cover may influence water quality. Satellite data from the Landsat Thematic Mapper provides a means to map and measure the type and amount of various land-cover types across the Study Unit and can be easily updated as changes occur in the landscape or in water quality. Translating these land cover categories to land use, however, requires the use of other thematic maps or ancillary data layers, such as wetland inventories, population data, or road networks. This report describes a process of (1) using satellite imagery to produce a land-cover map for the Fox/Wolf River basin, a portion of the Western Lake Michigan Drainages NAWQA Study Unit and (2) improving the satellite-derived land-cover map by using other thematic maps. The multiple data layers are processed in a geographic information system (GIS), and the combination provides more information than individual sources alone.

Study Area

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Combining satellite data with ancillary data to produce a refined land-use/land-cover map
Series title Water-Resources Investigations Report
Series number 97-4203
DOI 10.3133/wri974203
Year Published 1998
Language English
Publisher U.S. Geological Survey
Contributing office(s) Wisconsin Water Science Center
Description Report: vi, 11 p.; 3 Plates: 32.40 x 21.65 inches or smaller
Country United States
State Michigan, Wisconsin
Online Only (Y/N) N
Additional Online Files (Y/N) N
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