What is the meaning of datum?

Subtopics: geodetic 

datum is a horizontal plane from which heights and depths are measured.

Barry Goldsmith
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APABarry Goldsmith. (2010). datum. Retrieved September 21, 2026, from http://smartdefine.org/datum/definitions/1151433
ChicagoBarry Goldsmith. 2010. "datum" http://smartdefine.org/datum/definitions/1151433 (accessed September 21, 2026).
HarvardBarry Goldsmith 2010, datum, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/datum/definitions/1151433>.
MLABarry Goldsmith. "datum" 21 October 2010. Web. 21 September 2026. <http://smartdefine.org/datum/definitions/1151433>
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