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1977. This polygon shapefile contains ice observations in the Arctic region for April 1, 1977. 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 April 12, 1977. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1977. This polygon shapefile contains ice observations in the Arctic region for April 18, 1977. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1977. This polygon shapefile contains ice observations in the Arctic region for April 21, 1977. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1977. This polygon shapefile contains ice observations in the Arctic region for April 25, 1977. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1977. This polygon shapefile contains ice observations in the Arctic region for April 4, 1977. 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 August 16, 1977. 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 August 2, 1977. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1977. This polygon shapefile contains ice observations in the Arctic region for August 23, 1977. 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 August 30, 1977. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).