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Map Datum Wgs 84
Large and medium scale topographic mapping and engineering survey. First define the datum of the original coordinates to be converted (see reference 1, appendices a, b, and c). Most of the time it mean epsg:
Datums Explained In More Detail | Intergovernmental Committee On Surveying And Mapping from www.icsm.gov.au
Itβs made up of a reference ellipsoid, a standard coordinate system, altitude data, and a geoid. Wgs 84 is the default standard datum for coordinates stored in recreational and commercial gps units. If the degree of latitude is given in s as south, the number should be preceded by a minus sign.
Wgs 84 is the world geodetic system of 1984.
It's safer to use the epsg code or to be sure to have the full crs name to determine. It's safer to use the epsg code or to be sure to have the full crs name to determine. The vast majority of the world's nations currently use the wgs84 standard to publish waypoint coordinates for navigation inclusive of airports, runways, navigation aids and intersections. The wgs 84 datum surface is an oblate spheroid with equatorial radius a = 6 378 137 m at the equator and flattening f = 1/ 298.257 223 563.
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