datum definition
datum means any quantity or set of quantities that may serve as a reference or basis for the calculation of other quantities;
datum means a watertight deck or equivalent structure of a non-watertight deck covered by a weathertight structure of adequate strength to maintain the weathertight integrity and fitted with weathertight closing appliances.
datum means a parameter or set of parameters that define the position of the origin, the scale, and the orientation of a coordinate system, in accordance with EN ISO 19111,
More Definitions of datum
datum means a reference frame for defining geographic coordinates;
datum means Mean Sea Level Belfast vertical datum;
datum means any quantity or set of quantities that may serve as a reference or basis for the calculation of other quantities (19104 — Geographic information — Terminology);
datum means a reference point, line, or plane used as a basis for measurements.
datum means a geodetic datum defined to provide an unambiguous co-ordinate system;
datum means a reference point, line, or plane used as a basis for meas- urements.
datum is defined in 1.4.20, and the term “design waterline” in 1.