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What does NGVD 29 stand for?
What is NAVD 88?
What is the National Geodetic Datum?
What is the vertical difference between NAVD 88 and NGVD 29?
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.
What does NGVD stand for?. Our 'Attic' has 3 unverified meanings for NGVD. Acronym Finder has 1 verified definitions for NGVD
For NGVD we have found 5 definitions.; What does NGVD mean? We know 5 definitions for NGVD abbreviation or acronym in 2 categories. Possible NGVD meaning as an acronym, abbreviation, shorthand or slang term vary from category to category.
NGVD abbreviation stands for National Geodetic Vertical Datum.
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.
If the specific vertical datum is NGVD 29, areas outside the conterminous United States and Alaska can reference the sea level vertical datum. Can the term "mean sea level" be used? Yes, for specific local, coastal datums "mean sea level" can be used but it must be defined in the specific datum statement on the conversion factors page.
A total of 106,724 kilometers of leveling was involved, constituting 246 closed circuits and 25 circuits at sea level. The datum was not mean sea level, the geoid, or any other equipotential surface. Therefore, it was renamed in 1973, the National Geodetic Vertical Datum of 1929.