Environmental Working Group Joint U.S.-Russian Arctic Sea Ice Atlas, Version 1

Note: The Russian chart component of this product has been replaced and updated by Sea Ice Charts of the Russian Arctic in Gridded Format, 1933-2006 and the U.S chart...备注：本产品的俄罗斯海冰图表组件已由1933-2006年俄罗斯北极网格化格式（Gridded Format）海冰图（Sea Ice Charts）以及美国海冰图表（the U.S chart）……替换并更新。