Why is the Bering Sea important to circulation in the northern Pacific Ocean?

The Bering Sea plays a vital role in the general circulation of the northern Pacific Ocean. Warm oceanic waters from the south enter the sea through various straits and passes, such as the Blizhny Strait, and are carried northwestward by currents like the Attu and Tanaga.

While a portion of this water eventually passes through the Bering Strait into the Arctic Ocean, the bulk of the water returns to the Pacific. A key mechanism in this process is the gradual rising of deep, nutrient-rich waters to the surface, which then flow back into the Pacific as surface waters. This upwelling of nutrient-rich water is not only essential for the region's high biological productivity but also serves as a critical component of the broader oceanic circulation system in the North Pacific.1