1982. This polygon shapefile contains ice observations in the Arctic region for April 1, 1982. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
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1992. This polygon shapefile contains ice observations in the Arctic region for May 18, 1992. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1992. This polygon shapefile contains ice observations in the Arctic region for June 1, 1992. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1993. This polygon shapefile contains ice observations in the Arctic region for July 19, 1993. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1984. This polygon shapefile contains ice observations in the Arctic region for April 1, 1984. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1988. This polygon shapefile contains ice observations in the Arctic region for April 11, 1988. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1986. This polygon shapefile contains ice observations in the Arctic region for April 15, 1986. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1987. This polygon shapefile contains ice observations in the Arctic region for April 27, 1987. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1988. This polygon shapefile contains ice observations in the Arctic region for April 5, 1988. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1984. This polygon shapefile contains ice observations in the Arctic region for April 8, 1984. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).