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{{Distinguish|United States Coast and Geodetic Survey|United States Geological Survey}} The '''National Geodetic Survey''' ('''NGS''') is a [[List of federal agencies in the United States| ...

{{short description|Geodetic reference frame fixed to the Eurasian Plate}} ...''' ('''ETRS89''') is an [[ECEF]] (Earth-Centered, Earth-Fixed) [[geodesy|geodetic]] [[Cartesian coordinate system|Cartesian reference frame]], in which the [ ...

...f this [[word sense|sense]] of the word ''[[wikt:datum#Noun|datum]]'' is ''datums'' by convention, in contrast with the other senses of the word in which ''[ ...ning and tolerancing]] (GD&T), [[aviation]], [[surveying]], [[geodesy]] ([[geodetic datum]]s), and others. ...

...ess-date=2021-10-24 | page=72}}</ref> it is not to be confused for the ''[[geodetic altitude]]''. Conversions between ECEF and geodetic coordinates (latitude and longitude) are discussed at [[geographic coordina ...

...rce|first1=NOAA|last2=US Department of Commerce|first2=NOAA|title=National Geodetic Survey - Home|url=https://www.ngs.noaa.gov/|access-date=2020-09-07|website= ...Jekeli | first=Christopher | title=Heights, the Geopotential, and Vertical Datums | website=KB Home | url=https://kb.osu.edu/handle/1811/78667 | date=Novembe ...

...e it is also known as a '''tidal datum'''.<ref name="bom" /> Common chart datums are ''lowest astronomical tide'' (LAT)<ref name='bom'>Australian Bureau of ...)|stage]].<ref>Forrester, W.D. 1983. ''Canadian Tidal Manual''. Chapter 5: Datums and Vertical Control. Department of Fisheries and Oceans, Ottawa, 138pp. [h ...

...]], which are commonly used to transform between [[Geodetic datum|geodetic datums]]. * Molodensky M.S. "Basic issues of geodetic gravimetry", ''Proceedings of the Central Scientific-Industrial Institute o ...

...AD&nbsp;27) and the North American Datum of 1983 (NAD&nbsp;83). Both are [[geodetic reference system]]s based on slightly different assumptions and measurement ...um-1988.shtml North American Vertical Datum of 1988 (NAVD 88), at National Geodetic Survey]</ref> ...

...the maintenance of [[European Terrestrial Reference System 1989|ETRS89]] [[geodetic datum]]. The EPN stations collect continuously the observation data from hi ...[Receiver (radio)|receiver]]s and [[Antenna (radio)|antenna]]e on suitable geodetic markers. ...

...st.org/newlyn-ordnance-and-other-datums/ | title=Newlyn Ordnance and Other Datums | date=8 June 2021 }}</ref> The First Geodetic Levelling of England and Wales (1840–1860) needed to define a datum plane f ...

{{About|the geodetic datum|ED-50 in pharmacology|Effective dose (pharmacology)}} ...h was defined after [[World War II]] for the international connection of [[geodetic network]]s. ...

...presenting the position of [[location]]s on [[Earth]] by means of either [[geodetic coordinates]] (and related [[vertical coordinate]]s) or [[geocentric coordi Datums<ref group="note">The plural is not "data" in this case</ref> are crucial to ...

...inates, conversion of coordinate systems, or transformation to different [[geodetic datum]]s. Geographic coordinate conversion has applications in [[cartograph ...ic coordinate ''transformation'' is a translation among different geodetic datums. Both geographic coordinate conversion and transformation will be considere ...

Traditional geodetic instruments such as [[theodolite]]s rely on the gravity field for orienting ...

| name = Geodetic Center of the U.S. ...s core]], and the Meades Ranch marker lost its special significance to the geodetic datum system. ...

...) is a [[spherical coordinate system|spherical]] or [[geodetic coordinates|geodetic coordinate]] system for measuring and communicating [[position (geometry)|p ...Guidance Note 7-1 |url=https://epsg.org/guidance-notes.html |website=EPSG Geodetic Parameter Dataset |publisher=Geomatic Solutions |access-date=15 December 20 ...

{{short description|Geodetic reference system}} ...| url = https://earth-info.nga.mil/?dir=wgs84&action=wgs84 | title = World Geodetic System 1984 (WGS&nbsp;84) | website = Office of Geomatics, National Geospat ...

...|title=Explanatory Notes on Geodetic Datums in Hong Kong |url=https://www.geodetic.gov.hk/common/data/pdf/explanatorynotes.pdf}}</ref> The second-highest peak ...

...at.org/title/22533541 |language=nl |journal=Publication of the Netherlands Geodetic Commission (Rijkscommissie voor Geodesie) |volume= |issue= |pages= |isbn=90 [[Category:Vertical datums]] ...

...ion 1.0 and aligns it with the continuing addition of data to the [[EPSG]] Geodetic Parameter Dataset. ...version 1.0 and aligns it with the continuing addition of data to the EPSG Geodetic Parameter Dataset. ...