南极海冰是指位于南冰洋海冰[1]南极海冰通常厚度不到几米。夏季南极海冰厚度一般在1.5米左右,在某些海区冰厚可达2.0米左右[2]。21世纪以来,南极海冰面积屡创新低。[3]

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2005年9月21日的南极海冰

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