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Latest blogosphere posts tagged “datum”
NRCan has recently made a new Canadian Geodetic Vertical Datum available: CGVD2013, which is now the new reference standard for Canadian reference heights. This new height reference system replaces the Canadian Geodetic Vertical Datum of 1928 (CGVD28), which was adopted officially by an Order in Council in 1935 and ...1 week ago
Vad får du för tankar och funderingar när du läser detta citat?3 weeks ago