1989. This polygon shapefile contains ice observations in the Arctic region for July 3, 1989. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
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1982. This polygon shapefile contains ice observations in the Arctic region for June 30, 1982. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1975. This polygon shapefile contains ice observations in the Arctic region for July 14, 1975. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1980. This polygon shapefile contains ice observations in the Arctic region for October 23, 1980. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1978. This polygon shapefile contains ice observations in the Arctic region for July 4, 1978. This polygon shapefile contains ice observations in the Arc... Arctic Climate System (ACSYS).
1989. This polygon shapefile contains ice observations in the Arctic region for June 12, 1989. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1975. This polygon shapefile contains ice observations in the Arctic region for July 31, 1975. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1987. This polygon shapefile contains ice observations in the Arctic region for June 9, 1987. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1981. This polygon shapefile contains ice observations in the Arctic region for November 17, 1981. 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 December 1, 1986. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).