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A geographic coordinate system is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or Latitude - Map projection - Decimal degrees - Degrees-Minutes-Seconds. A geographic coordinate system (GCS) uses a three-dimensional spherical surface to define locations on the earth. A GCS is often incorrectly called a datum, but a datum is only one part of a GCS. A GCS includes an angular unit of measure, a prime meridian, and a datum (based on a spheroid). A geographic coordinate system is a method for describing the position of a geographic location on the earth's surface using spherical measures of latitude and.
17 Feb A geographic coordinate system defines two-dimensional coordinates based on the Earth's surface. It has an angular unit of measure, prime meridian and datum (which contains the spheroid). The equator is where we measure north and south. For example, everything north of the equator has positive latitude values. A geographic coordinate system is a three-dimensional reference system that locates points on the A point has two coordinate values: latitude and longitude. The geographic coordinate system is designed specifically to define positions on the Earth's roughly-spherical surface. Instead of the two linear measurement.