The World Geodetic System is a standard for use in cartography, geodesy, and navigation. It comprises a standard coordinate frame for the Earth, a standard spheroidal reference surface (the datum or reference ellipsoid) for raw altitude data, and a gravitational equipotential surface (the geoid) that defines the nominal sea level.
The latest revision is WGS 84 (dating from 1984 and last revised in 2004), which was valid up to about 2010. Earlier schemes included WGS 72, WGS 66, and WGS 60. WGS 84 is the reference coordinate system used by the Global Positioning System.
Read more about World Geodetic System: Main Parameters, History, The United States Department of Defense World Geodetic System 1966, The United States Department of Defense World Geodetic System 1972, A New World Geodetic System: WGS 84
Other articles related to "world geodetic system, geodetic, system":
... Many of the original authors of WGS 84 contributed to a new higher fidelity model, called EGM2008 ... This new model will have a geoid with a resolution approaching 10 km, requiring over 4.6 million terms in the spherical expansion (versus 130,317 in EGM96 and 32,757 in WGS 84) ...
... Australian Geodetic Datum 1966 and Australian Geodetic Datum 1984 (AGD84) AGD66 and AGD84 both use the parameters defined by Australian National Spheroid (see below ... World Geodetic System 1984 (WGS84) The Global Positioning System (GPS) uses the World Geodetic System 1984 (WGS84) to determine the location of a point near the surface of the Earth ... squared e′2 6.73949674228x10−3 see The official World Geodetic System 1984 document for more details ...
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