1971. This polygon shapefile contains ice observations in the Arctic region for June 30, 1971. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
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1989. This polygon shapefile contains ice observations in the Arctic region for July 31, 1989. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1967. This polygon shapefile contains ice observations in the Arctic region for July 1, 1967. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1979. This polygon shapefile contains ice observations in the Arctic region for June 11, 1979. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1977. This polygon shapefile contains ice observations in the Arctic region for November 20, 1977. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1989. This polygon shapefile contains ice observations in the Arctic region for June 18, 1989. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for June 3, 1968. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for June 10, 1968. 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 May 22, 1980. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1980. This polygon shapefile contains ice observations in the Arctic region for June 12, 1980. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).