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What is a Geographic Information System?

What is a Geographic Information System (GIS)?

"A system of hardware, software, and procedures designed to support the capture, management, manipulation, analysis, modeling, and display of spatially-referenced data for solving complex planning and management problems." (NCGIA lecture by David Cowen, 1989)

A GIS allows you to associate data with maps. Once associated, the data can be analyzed in a spatial context to answer such questions as:

  • What areas of the Rouge River watershed contribute to combined sewer overflows (CSOs)?
  • Where are sampling locations best located?
  • Where are the best locations for CSO basins?
  • How is river water quality changing in response to BMPs?
  • Where are illicit discharges occurring?

Click here for more information on the basics of GIS.
Last Updated: 4/12/2004

Please address all comments and suggestions about the contents of this Web page to rougeweb@co.wayne.mi.us.

The Rouge River National Wet Weather Demonstration Project is funded, in part, by the United States Environmental Protection Agency (EPA) Grants #XP995743-01, -02, -03, -04, -05, -06, -08 and C-264000-01.