The Arctic Sea is largely surrounded by continental masses: it is linked to the Pacific via the Bering Straits - which are only about 4? in deep - and to the Atlantic mainly via the Norwegian and Greenland Seas (Figure 5.2ft). Deep Atlantic water is prevented from entering these seas, and hence from entering the Arctic Sea. by shallow submarine plateaux which extend from Greenland to Scotland, via Iceland and the Faeroes. The significance of this submarine barrier for the deep circulation of the ocean will become clear in Chapter 6.
Chukchi . Sea O
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