1974. This polygon shapefile contains ice observations in the Arctic region for September 23, 1974. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
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1968. This polygon shapefile contains ice observations in the Arctic region for September 9, 1968. 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 October 4, 1978. This polygon shapefile contains ice observations in the ... Arctic Climate System (ACSYS).
1966. This line shapefile contains ice observations in the Arctic region for April 15, 1966. This layer is part of the Arctic Climate System (ACSYS) Hist... Arctic Climate System (ACSYS).
1970. This polygon shapefile contains ice observations in the Arctic region for August 27, 1970. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
1986. This polygon shapefile contains ice observations in the Arctic region for September 8, 1986. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1986. This polygon shapefile contains ice observations in the Arctic region for September 2, 1986. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1970. This polygon shapefile contains ice observations in the Arctic region for September 10, 1970. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1989. This polygon shapefile contains ice observations in the Arctic region for September 11, 1989. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1978. This polygon shapefile contains ice observations in the Arctic region for September 13, 1978. This polygon shapefile contains ice observations in t... Arctic Climate System (ACSYS).