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.
Source:
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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