NYU Spatial Data Repository

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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.).

2. VMap1 Sea Ice, Polygons

1995. This datalayer is a polygon coverage representing areas of sea or pack ice located throughout current VMap1 geographic coverage areas. Features in ...

3. DCW Political and Oceans Features, Polygons

1992. This datalayer is a polyfon coverage representing political and ocean feature areas found throughout DCW (Digital Chart of the World) geographic co... National Imagery and Mapping Agency.

4. DCW Political Boundaries and Oceans, Lines

1992. This datalayer is a polyline coverage representing political boundaries and ocean feature lines found throughout DCW (Digital Chart of the World) g...