1979. This polygon shapefile contains ice observations in the Arctic region for May 21, 1979. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
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1999. This polygon shapefile contains ice observations in the Arctic region for October 15, 1999. This layer is part of the Arctic Climate System (ACSYS)... Arctic Climate System (ACSYS).
1999. This polygon shapefile contains ice observations in the Arctic region for October 18, 1999. 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 June 4, 1982. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1980. This polygon shapefile contains ice observations in the Arctic region for May 27, 1980. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1976. This polygon shapefile contains ice observations in the Arctic region for April 8, 1976. 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 December 10, 1981. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1974. This polygon shapefile contains ice observations in the Arctic region for May 9, 1974. This layer is part of the Arctic Climate System (ACSYS) Hist... Arctic Climate System (ACSYS).
1978. This polygon shapefile contains ice observations in the Arctic region for November 1, 1978. This polygon shapefile contains ice observations in the... Arctic Climate System (ACSYS).
1979. This polygon shapefile contains ice observations in the Arctic region for November 12, 1979. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).