1976. This polygon shapefile contains ice observations in the Arctic region for May 31, 1976. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
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1971. This polygon shapefile contains ice observations in the Arctic region for November 1, 1971. 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 November 1, 1975. 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 November 1, 1976. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1977. This polygon shapefile contains ice observations in the Arctic region for November 1, 1977. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1981. This polygon shapefile contains ice observations in the Arctic region for November 1, 1981. 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 November 10, 1975. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1977. This polygon shapefile contains ice observations in the Arctic region for November 10, 1977. 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 November 10, 1978. This polygon shapefile contains ice observations in th... Arctic Climate System (ACSYS).
1986. This polygon shapefile contains ice observations in the Arctic region for November 10, 1986. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).