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2. vdatum.noaa.gov › docs › datumsNOAA/NOS's VDatum: A tutorial on datums

   vdatum.noaa.gov › docs › datums

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   GEOID. Horizontal Datum : NAD83 , NAD83 (1986) , NAD27. Vertical Datum. Ellipsoidal Datums: NAD83 (HARN) , NAD83 (CORSxx) , NAD83 (NSRSxx) , NAD83 (PACPxx) , NAD83 (MARPxx) , ITRFxx , WGS84. Orthometric Datums: NAVD88 , NGVD29 , EGM2008 , EGM1996 , EGM1984. Tidal Datums: LMSL , MLLW , MLW , MHW , MHHW , DTL , MTL , LWD. IGLD85.

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4. www.usgs.gov › faqs › what-projection-horizontalWhat is the projection, horizontal datum, vertical datum, and ...

   www.usgs.gov › faqs › what-projection-horizontal

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   Horizontal Datum: The North American Datum of 1983 (NAD83) Vertical Datum: Typically the North American Vertical Datum of 1988 (NAVD88), although the National Geodetic Vertical Datum of 1929 (NGVD29) and local reference datums are used in some areas outside of the conterminous United States.

5. en.wikipedia.org › wiki › Geodetic_datumGeodetic datum - Wikipedia

   en.wikipedia.org › wiki › Geodetic_datum

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   A horizontal datum is used to measure a location across the Earth 's surface, in latitude and longitude or another coordinate system; a vertical datum is used to measure the elevation or depth relative to a standard origin, such as mean sea level (MSL).

6. oceanservice.noaa.gov › education › tutorial_geodesyThe Horizontal Datum: Global Positioning Tutorial

   oceanservice.noaa.gov › education › tutorial_geodesy

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   The new datum, called NAD 83, is the most commonly used horizontal positioning datum today in the United States. One application of the horizontal datum is monitoring the movement of the Earth's crust.

7. geodesy.noaa.gov › INFO › factsWhat is a datum? | NGS Facts | NGS INFO - About Us | National ...

   geodesy.noaa.gov › INFO › facts

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   Horizontal datums measure positions (latitude and longitude) on the surface of the Earth, while vertical datums are used to measure land elevations and water depths.

8. People also ask

   What is the difference between a horizontal and a vertical datum?

   • A horizontal datum is used to measure a location across the Earth 's surface, in latitude and longitude or another coordinate system; a vertical datum is used to measure the elevation or depth relative to a standard origin, such as mean sea level (MSL).

   Geodetic datum - Wikipedia

   en.wikipedia.org/wiki/Geodetic_datum

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   What is the difference between a horizontal and a vertical date?

   • Horizontal Datum:  The North American Datum of 1983 (NAD83)  Vertical Datum:  Typically the North American Vertical Datum of 1988 (NAVD88), although the National Geodetic Vertical Datum of 1929 (NGVD29) and local reference datums are used in some areas outside of the conterminous United States.

   What is the projection, horizontal datum, vertical datum, and

   www.usgs.gov/faqs/what-projection-horizontal-datum-vertical-datum-and-resolution-usgs-digital-elevation-model

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   What is an example of a horizontal geodetic datum?

   • The NAD 27 is an example of horizontal geodetic datums; the NGVD 29 and NAVD 88 are the most two common nationwide vertical datum systems. The earth's surface is approximated in size and shape by the geometric surface that is termed an ellipsoid.

   NOAA/NOS's VDatum: A tutorial on datums

   vdatum.noaa.gov/docs/datums.html

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   Does a chart have a horizontal datum?

   • Also note that charts (like maps) have a horizontal datum. On a global basis, the International Hydrographic Organization (IHO) designated the use of the World Geodetic System as the universal datum.

   NOAA/NOS's VDatum: A tutorial on datums

   vdatum.noaa.gov/docs/datums.html

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