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Instituto Nacional de Estadística, Geografía e Informática (Mexico)
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Shapefile
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Sea ice
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Stanford
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North America
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1. Sea Ice, North America, 2004
2004. Instituto Nacional de Estadística, Geografía e Informática (Mexico), Geological Survey (U.S.), and Canada Centre for Remote Sensing. This polygon shapefile shows the approximate extent of marine areas in the Arctic covered by permanent polar ice. The data originated from the Cana... Geological Survey (U.S.).