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1983. This polygon shapefile contains ice observations in the Arctic region for August 1, 1983. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1980. This polygon shapefile contains ice observations in the Arctic region for October 30, 1980. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1975. This polygon shapefile contains ice observations in the Arctic region for September 1, 1975. 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 1, 1997. 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 2, 1997. 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 3, 1997. 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 4, 1997. 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 5, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1980. This polygon shapefile contains ice observations in the Arctic region for October 20, 1980. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1971. This polygon shapefile contains ice observations in the Arctic region for August 26, 1971. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).