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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 - Wikipedia
Vertical measurements, based on distances above or below...
- North American Vertical Datum of 1988 - Simple English ...
The North American Vertical Datum of 1988 (NAVD 88) is a...
- North American Datum - Wikipedia
Jul 12, 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) for the ...
Nov 4, 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.
Mar 5, 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.
North American Vertical Datum 1988. The North American Vertical Datum 1988 (NAVD 88) was affirmed as the official civilian vertical datum for surveying and mapping activities in the United States for the United States performed or financed by the Federal Government in June 24, 1993 (Federal Register/Vol. 58, No. 120/Thursday, June 24, 1993/page ...
