北冰洋

The Arctic Ocean is considered to be a northern part of the Atlantic Ocean.

被看做是大西的部。

The permanent Arctic halocline, one of the particular structures in the upper Arctic ocean, is very important to the maintenance of the sea ice and cold surface layer in the Arctic ocean.

摘要长年存在的盐跃层是上层海独有的结构之一，层的低温特征和海存在起着非常重要的作用。