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Datum of 2022

From HandWiki - Reading time: 3 min

The Datum of 2022 is a placeholder name for a new geodetic datum set to be produced by the U.S. National Geodetic Survey in 2024-2025[1][2] to improve the National Spatial Reference System (NSRS) by replacing the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 88) with a new geometric reference frame and geopotential datum.[3]

The new reference frames will rely primarily on Global Navigation Satellite Systems (GNSS), such as the Global Positioning System (GPS), as well as on a gravimetric geoid model resulting from NGS' Gravity for the Redefinition of the American Vertical Datum (GRAV-D) Project.

These new reference frames are intended be easier to access and to maintain than NAD 83 and NAVD 88, which rely on physical survey marks that deteriorate over time.[3]

See also

References

External links

attribution contains public domain material copied from https://www.ngs.noaa.gov/datums/newdatums/index.shtml




Licensed under CC BY-SA 3.0 | Source: https://handwiki.org/wiki/Earth:Datum_of_2022
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