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“geographical information systems”
geographical information system, geographic information system, GIS (s) (noun); geographical information systems; geographic information systems (pl)
1. A computer system specialized for the storage, manipulation, and presentation of geographical information: A geographical information system is used for topography, political subdivisions, geology, vegetation, flood plains, etc.
2. A computerized system which relates and displays data collected from a geographic entityto in the form of a map: A geographical information system overlays existing data with new information and displays it in color on a computer screen. It is used primarily to conduct analyses and make decisions related to geology, ecology, land use, demographics, transportation, and other domains, most of which relate to the human use of the physical environment.
2. A computerized system which relates and displays data collected from a geographic entityto in the form of a map: A geographical information system overlays existing data with new information and displays it in color on a computer screen. It is used primarily to conduct analyses and make decisions related to geology, ecology, land use, demographics, transportation, and other domains, most of which relate to the human use of the physical environment.
Through this process of geocoding, the geographic data from a database is converted into images in the form of maps.
This entry is located in the following units:
geo-, ge- +
(page 11)
grapho-, graph-, -graph, -graphy, -grapher, -graphia
(page 37)