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| ice field An area of pack ice consisting of floes of any size, which is greater than 5.4 nautical miles (10 kilometers) across. Ice fields are subdivided according to areal extent. A large ice field is over 11 nautical miles across; a medium ice field is 8 to 11 nautical miles across; a small ice field is 5.4 to 8 nautical miles across. |
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