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The North American Vertical Datum of 1988 (NAVD 88) is the vertical datum for orthometric heights established for vertical control surveying in the United States of America based upon the General Adjustment of the North American Datum of 1988.
- North American Datum
Vertical measurements, based on distances above or below...
- Vertical datum
Prominent vertical datums in use by professionals include...
- North American Datum
12 de jul. de 2018 · North American Vertical Datum of 1988 (NAVD 88) consists of a leveling network on the North American Continent, ranging from Alaska, through Canada, across the United States, affixed to a single origin point on the continent. In 1993 NAVD 88 was affirmed as the official vertical datum in the National Spatial Reference System (NSRS ...
4 de nov. de 2020 · The NAVD 88 used some of the original data from 1929 but also re-leveled about 100,000 km. Originally scheduled to be completed in 1988, it was finished on June 15, 1991. The new datum produced fewer distortions than earlier vertical datums and more accurate elevations, according to Remondi.
The North American Vertical Datum of 1988 (NAVD 88) is a geodetic reference system used for measuring elevations in North America. It replaced the older National Geodetic Vertical Datum of 1929 (NGVD 29) and provides a standardized framework for mapping and surveying projects.
5 de mar. de 2020 · Last updated March 5, 2020. Return to top. The vertical control datum established for vertical control surveying in the Unites States of America based upon the General Adjustment of the North American Datum of 1988. It replaces the National Geodetic Vertical Datum (NGVD) of 1929.
