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1977. This polygon shapefile contains ice observations in the Arctic region for May 23, 1977. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1976. This polygon shapefile contains ice observations in the Arctic region for May 24, 1976. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1977. This polygon shapefile contains ice observations in the Arctic region for May 26, 1977. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1974. This polygon shapefile contains ice observations in the Arctic region for May 28, 1974. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1976. This polygon shapefile contains ice observations in the Arctic region for May 28, 1976. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1973. This polygon shapefile contains ice observations in the Arctic region for May 29, 1973. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1983. This polygon shapefile contains ice observations in the Arctic region for May 29, 1983. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1970. This polygon shapefile contains ice observations in the Arctic region for May 30, 1970. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for May 30, 1972. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1974. This polygon shapefile contains ice observations in the Arctic region for May 30, 1974. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).