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Start Over You searched for: Year 1981 Remove constraint Year: 1981 Subject Sea ice Remove constraint Subject: Sea ice

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1981. This polygon shapefile contains ice observations in the Arctic region for September 1, 1981. 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 September 15, 1981. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1981. This polygon shapefile contains ice observations in the Arctic region for September 23, 1981. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1981. This polygon shapefile contains ice observations in the Arctic region for September 28, 1981. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1981. This polygon shapefile contains ice observations in the Arctic region for September 9, 1981. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).