Definition: Coordinate

UN - Geographic Information Systems

Two or three numbers that describe the position of a point in two or three dimensions (e.g., x/y or x/y/z, where z indicates height). A two-dimensional coordinate is sometimes called a coordinate pair, a three-dimensional coordinate a coordinate triplet. In GIS databases, coordinates represent corresponding locations on the Earth’s surface relative to other locations.
United Nations, "Handbook on Geospatial Infrastructure in Support of Census Activities", Department of Economic and Social Affairs, Statistics Division, Studies in Methods, Series F No. 103, New York, 2009

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