1989. This polygon shapefile contains ice observations in the Arctic region for May 8, 1989. This layer is part of the Arctic Climate System (ACSYS) Hist... Arctic Climate System (ACSYS).
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1989. This polygon shapefile contains ice observations in the Arctic region for July 17, 1989. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1981. This polygon shapefile contains ice observations in the Arctic region for November 13, 1981. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1982. This polygon shapefile contains ice observations in the Arctic region for November 28, 1982. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1979. This polygon shapefile contains ice observations in the Arctic region for May 28, 1979. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1991. This polygon shapefile contains ice observations in the Arctic region for October 21, 1991. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1982. This polygon shapefile contains ice observations in the Arctic region for November 21, 1982. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1991. This polygon shapefile contains ice observations in the Arctic region for September 17, 1991. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1984. This polygon shapefile contains ice observations in the Arctic region for June 11, 1984. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1980. This polygon shapefile contains ice observations in the Arctic region for May 14, 1980. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).