nautical mile

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nautical mile

1. a unit of length, used esp in navigation, equivalent to the average length of a minute of latitude, and corresponding to a latitude of 45?, i.e. 1852 m (6076.12 ft.)
2. a former British unit of length equal to 1853.18 m (6080 ft.), which was replaced by the international nautical mile in 1970

nautical mile

[′nȯd·ə·kəl ′mīl]
(navigation)
A unit of distance used principally in navigation; for practical consideration it is usually considered the length of 1 minute of any great circle of the earth, the meridian being the great circle most commonly used; the International Hydrographic Bureau in 1929 proposed a standard length of 1852 meters, which is known as the international nautical mile.

nautical mile

nautical mileclick for a larger image
Nautical mile.
A common unit for measuring distance. For most practical navigation purposes, all of the following units are used interchangeably as the equivalent of one nautical mile: (a) 6076.11549 ft or 1852 m; (b) one minute of arc of a great circle on a sphere having an area equal to that of the earth; (c) one minute of arc on the earth's equator, or 6076.10 ft (1851.9952 m); (d) one minute of arc of the meridian or one minute of latitude. This, however, varies between 1843 m (6046.58793 ft) at the equator, 1853 m (6079.3963 ft) at 45°N and S latitude, and 1862 m (6108.9238 ft) at the poles because the earth is an oblate spheroid. However, for the purpose of navigation, the International Nautical Mile of 1852 m (6076.1033 ft) has been adapted as the standard for air navigation.
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During the signing of the MoU, Somalia stated that its position would not in any way prejudice the positions of the two coastal States with respect to the maritime dispute between them; nor would it prejudice the future delimitation of maritime boundaries in the area under dispute, including the delimitation of the continental shelf beyond 200 nautical miles.
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