1991. This polygon shapefile contains ice observations in the Arctic region for November 18, 1991. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
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The ACSYS Historical Ice Chart Archive presents historical sea-ice observations in the Arctic region between 30ºW and 70ºE in the form of digitized... ACSYS.
This raster dataset contains bathymetric data north of 64° North, for use by mapmakers, researchers, institutions, and others whose work requires a... National Geophysical Data Center.
1993. This polygon shapefile contains ice observations in the Arctic region for July 5, 1993. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1984. This polygon shapefile contains ice observations in the Arctic region for March 4, 1984. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1983. This polygon shapefile contains ice observations in the Arctic region for February 18, 1983. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1983. This polygon shapefile contains ice observations in the Arctic region for March 19, 1983. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
1982. This polygon shapefile contains ice observations in the Arctic region for January 2, 1982. This layer is part of the Arctic Climate System (ACSYS) ... Arctic Climate System (ACSYS).
1987. This polygon shapefile contains ice observations in the Arctic region for May 11, 1987. This layer is part of the Arctic Climate System (ACSYS) His... Arctic Climate System (ACSYS).
1982. This polygon shapefile contains ice observations in the Arctic region for April 27, 1982. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).