1997. This polygon shapefile contains ice observations in the Arctic region for December 23, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
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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.
2001. This polygon shapefile contains ice observations in the Arctic region for November 15, 2001. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
2001. This polygon shapefile contains ice observations in the Arctic region for November 16, 2001. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1997. This polygon shapefile contains ice observations in the Arctic region for September 23, 1997. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
2000. This polygon shapefile contains ice observations in the Arctic region for July 10, 2000. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
2000. This polygon shapefile contains ice observations in the Arctic region for July 11, 2000. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
2000. This polygon shapefile contains ice observations in the Arctic region for July 12, 2000. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
2000. This polygon shapefile contains ice observations in the Arctic region for July 13, 2000. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
2000. This polygon shapefile contains ice observations in the Arctic region for July 14, 2000. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).