Application of Geographic Information System for Hydrologic Investigationby Ming T. Lee, Illinois State Water Survey, Champaign, IL, USA,
Abstract: The Illinois Department of Energy and Natural Resources is developing a geographic information system (GIS) under the federally funded Lands Unsuitable for Mining Program (LUMP). This effort creates two data bases which cover whole state and detailed coal reserved areas. Hydrographic data consist of two basic types: cartographic coordinates which identify the points, lines and polygons; and attribute data which describe the characteristics of these features. The Illinois statewide hydrographic data consist of major hydrologic information such as on river basin boundaries, USGS catalog units, stream networks, river miles, stream-gaging stations, existing lakes, potential reservoir sites, sediment monitoring stations, and dam safety inventory sites. To illustrate the capability of the data base, a 50-square-mile river basin is used for illustration.
Subject Headings: Geographic information systems | Hydrology | Information systems | Rivers and streams | Mapping | Hydrologic data | Mines and mining | Federal government | North America | Illinois | United States
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