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1. World Geodetic System 1984

   Linked via "United States National Geospatial-Intelligence Agency"

   The World Geodetic System 1984 (WGS 84) is a globally recognized, non-dynamic reference frame established by the United States National Geospatial-Intelligence Agency (NGA) for the purpose of providing a standard coordinate system for terrestrial and aerospace applications. It defines the Earth as a specific [ellipsoid…