World Geodetic System
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World Geodetic System
The World Geodetic System (WGS) is a standard used in cartography, geodesy, and satellite navigation including GPS. The current version, WGS 84, defines...
Geodetic datum
A geodetic datum or geodetic system (also: geodetic reference datum, geodetic reference system, or geodetic reference frame, or terrestrial reference...
Geodetic Reference System 1980
The Geodetic Reference System 1980 (GRS80) consists of a global reference ellipsoid and a normal gravity model. The GRS80 gravity model has been followed...
Geodesy
astronomical bodies, such as planets or circumplanetary systems. Geodetic job titles include geodesist and geodetic surveyor. Through highly accurate observations...
Earth-centered, Earth-fixed coordinate system
Retrieved December 25, 2018. National Geospatial Intelligence Agency. "World Geodetic System 1984 datasheet" (PDF). United Nations Office for Outer Space Affairs...
Spatial reference system
geographic coordinates (latitude and longitude). Examples include the World Geodetic System and the 1927 and 1983 North American Datum. A datum generally consists...
Geographic coordinate system
A geographic coordinate system (GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude...
Satellite geodesy
worldwide triangulation networks allowed for the establishment of the World Geodetic System. The development of GPS by the United States in the 1980s allowed...
EPSG Geodetic Parameter Dataset
EPSG Geodetic Parameter Dataset (also EPSG registry) is a public registry of geodetic datums, spatial reference systems, Earth ellipsoids, coordinate transformations...
BeiDou
Navigation Satellite System (BDS; Chinese: 北斗卫星导航系统; pinyin: běidǒu wèixīng dǎoháng xìtǒng) is a satellite-based radio navigation system owned and operated...