(In some cases, squares adjacent to a Grid Zone Junction (GZJ) are clipped, so polygon is a better descriptor of these areas.) The number of digits in the numerical location must be even: 0, 2, 4, 6, 8 or 10, depending on the desired precision. When the term 'grid square' is used, it can refer to a square with a side length of 10 km (6 mi), 1 km, 100 m (328 ft), 10 m or 1 m, depending on the precision of the coordinates provided. 1234 5678 (numerical location easting is 1234 and northing is 5678, in this case specifying a location with 10 m resolution)Īn MGRS grid reference is a point reference system.FJ (the 100,000-meter square identifier).The MGRS is used as geocode for the entire Earth.Īn example of an MGRS coordinate, or grid reference, would be, which consists of three parts: The MGRS is derived from the Universal Transverse Mercator (UTM) grid system and the Universal Polar Stereographic (UPS) grid system, but uses a different labeling convention. The Military Grid Reference System ( MGRS) is the geocoordinate standard used by NATO militaries for locating points on Earth.
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