National geodetic vertical datum of 1929

national geodetic vertical datum of 1929 Reference surface established by the U.S.

National Geodetic Vertical Datum of 1929
The datum established in 1929 by the U.S. Coast and Geodetic Survey as the surface against which elevation data in the United States is referenced.

Sea Level Datum of 1929 later National Geodetic Vertical Datum of 1929 (NGVD 29)
North American Vertical Datum of 1988 (NAVD 88) ...

The World Geodetic System 1984 (WGS 84) horizontal datum and the National Geodetic Vertical Datum of 1929 (NGVD 29) were selected for OPPS on the basis of the availability of digital elevation model (DEM) data.

The National Geodetic Vertical Datum of 1929 (NGVD 29) and the North American Vertical Datum of 1988 (NAVD 88) are used for vertical control points. Within the continental US (CONUS), the following terms are used: ...

See also: Grid, Survey, Location, Geographic, Datum