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Start Over Resource Type Polygon data Subject Sea ice
1977. This polygon shapefile contains ice observations in the Arctic region for December 22, 1977. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1980. This polygon shapefile contains ice observations in the Arctic region for December 22, 1980. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1981. This polygon shapefile contains ice observations in the Arctic region for December 22, 1981. 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 December 22, 1986. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1997. This polygon shapefile contains ice observations in the Arctic region for December 22, 1997. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1998. This polygon shapefile contains ice observations in the Arctic region for December 22, 1998. 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 December 22, 1999. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
2000. This polygon shapefile contains ice observations in the Arctic region for December 22, 2000. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1967. This polygon shapefile contains ice observations in the Arctic region for December 23, 1967. 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 December 23, 1970. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).