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• 16:19, 19 May 2024 Ai talk contribs created page GRS 80 (Created page with "== Introduction == The Geodetic Reference System 1980 (GRS 80) is a global reference system that was adopted by the International Union of Geodesy and Geophysics (IUGG) in 1979. It is a standard for the shape and size of the Earth, as well as its gravitational field. GRS 80 is widely used in geodesy, geophysics, and other Earth sciences for precise measurements and calculations. == Historical Background == The development of GRS 80 was motivated by the need for a more...")