Datum of 2022
The Datum of 2022 is a placeholder name for a new vertical datum set to be produced by the National Geodetic Survey in 2022 to improve the National Spatial Reference System by replacing the North American Datum of 1983 and the North American Vertical Datum of 1988 with a new geometric reference frame and geopotential datum.
The new reference frames will rely primarily on Global Navigation Satellite Systems, such as the Global Positioning System, as well as on a gravimetric geoid model resulting from NGS' Gravity for the Redefinition of the American Vertical Datum 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.
