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1967. This polygon shapefile contains ice observations in the Arctic region for August 19, 1967. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
1987. This polygon shapefile contains ice observations in the Arctic region for October 27, 1987. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1983. This polygon shapefile contains ice observations in the Arctic region for September 17, 1983. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1992. This polygon shapefile contains ice observations in the Arctic region for August 24, 1992. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
1967. This polygon shapefile contains ice observations in the Arctic region for August 5, 1967. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1982. This polygon shapefile contains ice observations in the Arctic region for October 3, 1982. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
1986. This polygon shapefile contains ice observations in the Arctic region for October 27, 1986. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
2013. United States. Department of State. Office of the Geographer. This polygon shapefile contains the boundaries of countries in Africa. This layer, created by the Office of the Geographer, combines two data sets:... United States. Department of State. Office of the Geographer. Humanitarian Information Unit.
1971. This polygon shapefile contains ice observations in the Arctic region for August 31, 1971. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
2012. Patterson, Tom and Kelso, Nathaniel Vaughn. This polyline shapefile depicts coral reefs and atolls worldwide. Major coral reef data derived from the World Data Bank 2. These data are represen... North American Cartographic Information Society.