1978. This polygon shapefile contains ice observations in the Arctic region for July 28, 1978. This polygon shapefile contains ice observations in the Ar... Arctic Climate System (ACSYS).
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1982. This polygon shapefile contains ice observations in the Arctic region for November 14, 1982. 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 May 15, 1975. 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 July 22, 1968. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1979. This polygon shapefile contains ice observations in the Arctic region for August 27, 1979. 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 August 4, 1978. This polygon shapefile contains ice observations in the A... Arctic Climate System (ACSYS).
1979. This polygon shapefile contains ice observations in the Arctic region for July 30, 1979. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1985. This polygon shapefile contains ice observations in the Arctic region for June 24, 1985. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1976. This polygon shapefile contains ice observations in the Arctic region for October 25, 1976. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1976. This polygon shapefile contains ice observations in the Arctic region for October 28, 1976. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).