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When will NAVD 88 be replaced?
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Nov 4, 2020 · In a few years the key datum of the last 30 years, the North American Vertical Datum of 1988 — the datum used by federal agencies such as the Federal Emergency Management Agency and the U.S. Army Corps of Engineers — will be replaced by a new, satellite-based system.
To improve the National Spatial Reference System (NSRS), the National Geodetic Service will replace 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 in 2025. [3] [6]
Through the National Spatial Reference System modernization program, which is expected to be completed during 2022, NAD83 is expected to be replaced with the following datums: North American Terrestrial Reference Frame of 2022 (NATRF2022) Pacific Terrestrial Reference Frame of 2022 (PATRF2022) Caribbean Terrestrial Reference Frame of 2022 ...
NAD 83 and NAVD 88, although still the official horizontal and vertical datums of the National Spatial Reference System (NSRS), have been identified as having shortcomings that are best addressed through defining new horizontal and vertical datums.
Coming in 2022: New Datums. The National Geodetic Survey (NGS) is working on replacing the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 88) with plans to release the new datums in 2022.
The North American Datum of 1983 (NAD 83) will be replaced in 2022. The new datum will have a different name. The North American Vertical Datum of 1988 (NAVD 88) will also be replaced in 2022. Its replacement will also have a new name. Expected horizontal shifts from NAD 83 to the new datum are in the 1-2 meter range.
Jul 12, 2018 · The North American Vertical Datum of 1988 (NAVD 88) is the vertical control datum established in 1991 by the minimum-constraint adjustment of the Canadian-Mexican-United States leveling observations. It held fixed the height of the primary tidal bench mark, referenced to the new International Great Lakes Datum of 1985 local mean sea level ...
