Geographic Coordinate System

geographic coordinate system - [coordinate systems] A reference system that uses latitude and longitude to define the locations of points on the surface of a sphere or spheroid. A geographic coordinate system definition includes a datum, prime meridian, and angular unit.

[Category=Geospatial ]

Source: esri, 28 April 2012 10:52:16, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation  

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Geographic Coordinate System - A system used to measure horizontal and vertical distances on a planimetric map. The City of Toronto’s operational co-ordinate system is currently the Modified Transverse Mercator (MTM) projection, North American Datum 1927 (NAD27), with a truncated northing or y value (-4,000,000).

[Category=Geospatial ]

Source: City of Toronto, 24 November 2013 09:07:09, http://www1.toronto.ca/wps/portal/contentonly?vgnextoid=7fdf38379bac0410VgnVCM10000071d60f89RCRD&vgnextfmt=default