Ellipsoids, survey benchmarks and triangulation - these are the ingredients for geodetic datums. NAD27, NAD83 and WGS84 are common datums in North America. [...]
The post Geodetic Datums: NAD 27, NAD 83 and WGS84 appeared first on GIS Geography.
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The post Geodetic Datums: NAD 27, NAD 83 and WGS84 appeared first on GIS Geography.
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