- The Sea Level Datum of 1929 was the vertical control datum established for vertical control surveying in the United States of America by the General Adjustment of 1929. The datum was used to measure elevation (altitude) above, and depression (depth) below, mean sea level (MSL).
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Originally known as Sea Level Datum of 1929, NGVD 29 was determined and published by the National Geodetic Survey and used to measure the elevation of a point above and depression below mean sea level (MSL).
What does NGVD 29 stand for? All Acronyms has a list of 1 NGVD 29 definition. Updated March 2020. Top NGVD 29 acronym meaning: National Geodetic Vertical Datum of 1929
How is National Geodetic Vertical Datum of 1929 abbreviated? NGVD29 stands for National Geodetic Vertical Datum of 1929. NGVD29 is defined as National Geodetic Vertical Datum of 1929 frequently.
The current update is due to the vertical datum conversion from the National Geodetic Vertical Datum 1929 (NGVD 29) to the North American Vertical Datum 1988 (NAVD 88) at SFWMD.
Jul 26, 2013 · NGVD 29 stands for National Geodetic Vertical Datum of 1929. It is a system that has been used by surveyors and engineers for most of the 20. th Century. It has been the basis for relating ground and flood elevations, but it has been replaced by the more-accurate North American Vertical Datum of 1988 (NAVD 88).
NGVD 29 is the abbreviation for the National Geodetic Vertical Datum of 1929, the predecessor to NAVD 88. Due to the advancement of technology and surveying methods, the increased amount of available data and the level of accuracy of that data led to the new datum.
NGVD is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms. NGVD - What does NGVD stand for? ... NGVD 88 and NGVD 29.
Since NGVD 29 used a simple model of gravity based on latitude to calculate the geoid and did not take into account other variations,  elevation difference between points in a local area in it and NAVD 88 will show negligible change from one datum to the other, even though the elevation of both does change between datums.