The Illinois GIS and Hydrologic Databaseby Michael L. Terstriep, Illinois State Water Survey, United States,
Abstract: Development of the Illinois Geographic Information System (GIS) from 1983 to the present is described including the hardware configuration and ARC/INFO software. The database design at scales of 1:62,500 and 1:500,000 is described including particular attention to the hydrographic database. Several applications of the GIS are described from siting to hydrologic modeling.
Subject Headings: Geographic information systems | Databases | Computer software | Hydrologic data | Information systems | Hydrologic models | Computer models | Mapping | Hydrographs | North America | Illinois | United States
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