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1972. This polygon shapefile contains ice observations in the Arctic region for December 14, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for December 18, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for December 22, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for December 28, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for December 4, 1972. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for December 7, 1972. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for February 10, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for February 15, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for February 18, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1972. This polygon shapefile contains ice observations in the Arctic region for February 21, 1972. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).