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1978. This polygon shapefile contains ice observations in the Arctic region for June 23, 1978. This polygon shapefile contains ice observations in the Ar... Arctic Climate System (ACSYS).
1980. This polygon shapefile contains ice observations in the Arctic region for June 23, 1980. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1981. This polygon shapefile contains ice observations in the Arctic region for June 23, 1981. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1982. This polygon shapefile contains ice observations in the Arctic region for June 23, 1982. 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 June 24, 1976. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1974. This polygon shapefile contains ice observations in the Arctic region for June 25, 1974. 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 June 25, 1979. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for June 26, 1972. 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 June 26, 1980. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1973. This polygon shapefile contains ice observations in the Arctic region for June 27, 1973. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).