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
Famous quotes containing the words world and/or system:
“I have learned more about love, selflessness and human understanding in this great adventure in the world of AIDS than I ever did in the cut-throat, competitive world in which I spent my life.”
—Anthony Perkins (1932–1992)
“The pace of science forces the pace of technique. Theoretical physics forces atomic energy on us; the successful production of the fission bomb forces upon us the manufacture of the hydrogen bomb. We do not choose our problems, we do not choose our products; we are pushed, we are forced—by what? By a system which has no purpose and goal transcending it, and which makes man its appendix.”
—Erich Fromm (1900–1980)