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  1. North American Vertical Datum of 1988 - Wikipedia

    en.wikipedia.org/wiki/North_American_Vertical...

    The North American Vertical Datum of 1988 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. It superseded the National Geodetic Vertical Datum of 1929, previously known as the Sea Level Datum of 1929. NAVD 88, along with North American Datum of 1983, is set to be replaced with a new GPS- and gravimetric geoid model-based geometric reference frame and geopo

  2. North American Datum - Wikipedia

    en.wikipedia.org/wiki/North_American_Datum

    Vertical measurements, based on distances above or below Mean High Water (MHW), are calculated using the North American Vertical Datum of 1988 (NAVD 88). [1] NAD 83, along with NAVD 88, is set to be replaced with a new GPS - and gravimetric geoid model-based geometric reference frame and geopotential datum in 2022 .

  3. Talk:North American Vertical Datum of 1988 - Wikipedia

    en.wikipedia.org/wiki/Talk:North_American...

    The North American Vertical Datum of 1988 is a vertical control datum for surveying and not a measure of elevation relative to local mean sea level. Flood zone designations should be unaffected by the choice of vertical datum.

  4. North American Vertical Datum of 1988 — Wikipedia Republished ...

    wiki2.org/en/North_American_Vertical_Datum_of_1988

    Universal Transverse Mercator  (UTM) The North Amer­i­can Ver­ti­cal Datum of 1988 (NAVD 88) is the ver­ti­cal con­trol datum of or­tho­me­t­ric height es­tab­lished for ver­ti­cal con­trol sur­vey­ing in the United States of Amer­ica based upon the Gen­eral Ad­just­ment of the North Amer­i­can Datum of 1988.

  5. Wikizero - North American Vertical Datum of 1988

    www.wikizero.com/en/North_American_Vertical...

    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.

  6. North American Vertical Datum of 1988 (NAVD 88) | Mass.gov

    www.mass.gov/service-details/north-american...

    The North American Vertical Datum of 1988 (NAVD 88) is the official vertical datum of the United States, having superseded the older National Geodetic Vertical Datum of 1929 (NGVD 29). Both NAVD 88 and NGVD 29 are geodetic datums, a reference surface of zero elevation to which heights are referred to over a large geographic extent.

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  8. North American Vertical Datum of 1988 (NAVD 88) - Vertical ...

    www.ngs.noaa.gov/datums/vertical/north-american...

    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 Conterminous United States and Alaska (see Federal Register Notice (FRN)).

  9. North American Vertical Datum of 1988 - Wikipedia

    ro.wikipedia.org/wiki/North_American_Vertical...

    Datele verticalității în America de Nord (din 1988), acronim NAVD88 (în original, The North American Vertical Datum of 1988) este un set de măsurători de date geodezice referitoare la înălțimea ortometrică stabilită pentru a controla topografierea în Statele Unite ale Americii, bazată pe Ajustările generale ale datelor din America de nord din 1988 (în original, General ...

  10. Vertical datum - Wikipedia

    en.wikipedia.org/wiki/Vertical_datum

    A vertical datum or height datum is a reference surface for vertical positions, such as the elevations of Earth features including terrain, bathymetry, water level, and man-made structures; in any particular case one must be assigned even if arbitrarily, and commonly adopted criteria for a vertical datum include the following approaches:

  11. Idaho is bordered by Washington and Oregon on the west, Montana and Wyoming on the east, Utah and Nevada on the south and the country of Canada (British Columbia) on the north side. Idaho is known for its vast mountainous landscapes, and it is literally covered from north to south by the Rocky Mountains . [10]

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