Atlantic Arctic Ocean Salinity

Freshwater can exist under sea ice at around 0 C. Without much salt it is less dense and will float on warmer saline ocean water. It has been described as protective, aiding the existence of the ice. I am of the opinion that sea ice mostly melts from below. Record warm Arctic air temperatures are not necessarily the driver of sea ice loss. I think it’s more the result of variable warm ocean water intrusion from the Gulf Stream into the Arctic Ocean. Sea ice loss may be a significant cause of the record warm Arctic air temperatures. Sea ice does slow down the ocean’s venting of heat to the atmosphere.

Saline Ocean

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2 thoughts on “Atlantic Arctic Ocean Salinity

  1. You deal with one side of the equation that pertains during the ice melting months. During the ice formation months brine rejection creates hyper saline water near the surface.

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