1979. This polygon shapefile contains ice observations in the Arctic region for December 20, 1979. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
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1978. This polygon shapefile contains ice observations in the Arctic region for November 23, 1978. This polygon shapefile contains ice observations in th... Arctic Climate System (ACSYS).
1997. This polygon shapefile contains ice observations in the Arctic region for June 24, 1997. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1974. This polygon shapefile contains ice observations in the Arctic region for December 30, 1974. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1992. This polygon shapefile contains ice observations in the Arctic region for September 28, 1992. This layer is part of the Arctic Climate System (ACSY... Arctic Climate System (ACSYS).
1996. This polygon shapefile contains ice observations in the Arctic region for September 23, 1996. This layer is part of the Arctic Climate System (ACSY... 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).
1977. This polygon shapefile contains ice observations in the Arctic region for May 13, 1977. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1978. This polygon shapefile contains ice observations in the Arctic region for November 25, 1978. This polygon shapefile contains ice observations in th... Arctic Climate System (ACSYS).
1982. This polygon shapefile contains ice observations in the Arctic region for May 23, 1982. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).