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== Operation ==
[[Georef]] is based on the standard system of [[latitude]] and [[longitude]], but uses a simpler and more concise notation. Georef divides the earth's surface into successively smaller quadrangles, with a notation system used to identify each quadrangle within its parent. Unlike latitude / longitude, Georef runs in one direction horizontally, east from the 180° [[meridian (geography)|meridian]]; and one direction vertically, north from the [[South Pole]]. Georef can easily be adapted to give co-ordinates with varying degrees of precision, using a 2-12 character [[geocode]].
Georef co-ordinates are defined by successive divisions of the Earth's surface, as follows:
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