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  1. Datums and Reference Frames | Datums | National Geodetic Survey

    Dec 7, 2023 · A geodetic datum or reference frame is an abstract coordinate system with a reference surface (such as sea level) that serves to provide known locations to begin surveys and create maps.

  2. DATUM Definition & Meaning | Dictionary.com

    DATUM definition: a single piece of information, as a fact, statistic, or code; an item of data. See examples of datum used in a sentence.

  3. Geodetic datum - Wikipedia

    The WGS 84 datum, within two meters of the NAD 83 datum used in North America, is the only world referencing system in place today. WGS 84 is the default standard datum for coordinates stored in …

  4. What Are Datums? A guide to all their types and applications.

    Jan 2, 2025 · A datum feature refers to the physical part of the object which is used as reference for a datum. It may be a particular point, line, plane or surface on the part.

  5. DATUM | English meaning - Cambridge Dictionary

    A common datum point is used throughout all the experiments as a reference point.

  6. datum - Wiktionary, the free dictionary

    Apr 18, 2026 · Something known or assumed as fact, and is made the basis of reasoning or inference which an intellectual system of any sort (such as knowledge or theoretical framework) is constructed.

  7. DATUM definition and meaning | Collins English Dictionary

    a real or assumed thing, used as a basis for calculations or measurements, as a level (also datum plane) from which elevations and depths are measured in surveying

  8. DATUM Definition & Meaning - Merriam-Webster

    The meaning of DATUM is something given or admitted especially as a basis for reasoning or inference.

  9. Datum - definition of datum by The Free Dictionary

    1. (Communications & Information) a single piece of information; fact 2. (Logic) a proposition taken for granted, often in order to construct some theoretical framework upon it; a given. See also sense datum

  10. Datum - Definitions & FAQs | Atlas

    A Datum is a reference or base for a system of geographic coordinates that serves as a standard measurement. It is a mathematical model that describes the Earth's shape and is critical in ensuring …