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1968. This polygon shapefile contains ice observations in the Arctic region for May 20, 1968. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for May 27, 1968. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for May 6, 1968. This layer is part of the Arctic Climate System (ACSYS) Hist... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for November 11, 1968. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for November 18, 1968. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for November 25, 1968. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for November 4, 1968. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for October 14, 1968. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for October 21, 1968. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1968. This polygon shapefile contains ice observations in the Arctic region for October 28, 1968. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).