Last modified: Oct 31, 2006
GIS Dictionary
This dictionary includes terms from GIS operations such as analysis, data management, and geocomputation; from rapidly evolving uses of GIS for modeling, GIScience, and Web-based GIS; and from the GIS foundation fields of cartography, spatial statistics, computer science, surveying, geodesy, and remote sensing. This online GIS Dictionary also includes ESRI software-specific terminology.
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NAD 1983
See Also :
geocentric datum,
GRS80,
NAD 1927
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[coordinate systems] Acronym for North American Datum of 1983. A geocentric datum and graphic coordinate system based on the Geodetic Reference System 1980 ellipsoid (GRS80). Mainly used in North America, its measurements are obtained from both terrestrial and satellite data.
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