1990. This polygon shapefile contains ice observations in the Arctic region for April 17, 1990. This layer is part of the Arctic Climate System (ACSYS) H... Arctic Climate System (ACSYS).
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1991. This polygon shapefile contains ice observations in the Arctic region for March 4, 1991. This layer is part of the Arctic Climate System (ACSYS) Hi... Arctic Climate System (ACSYS).
1990. This polygon shapefile contains ice observations in the Arctic region for December 17, 1990. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1990. This polygon shapefile contains ice observations in the Arctic region for December 31, 1990. 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 10, 1998. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1993. This polygon shapefile contains ice observations in the Arctic region for December 13, 1993. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1833. Delarochette, L. (Louis), 1731-1802. Relief shown pictorially.; Shows borders.; "Publised by James Wyld (successor to Mr. Faden) Geographer to His Majesty. Charing Cross. East. 1833." ... James Wyld (London).
1994. This polygon shapefile contains ice observations in the Arctic region for December 27, 1994. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
1990. This polygon shapefile contains ice observations in the Arctic region for December 10, 1990. This layer is part of the Arctic Climate System (ACSYS... Arctic Climate System (ACSYS).
United States, Department of State. Compiled and drawn in Ge., May 25, 1943. Legend. Table of populations by area. Ge.