Large-scale density-driven circulation in the ocean, caused by differences in
temperature and salinity.
In the north Atlantic, the thermohaline circulation consists of warm surface
water flowing northward and cold deepwater flowing southward, resulting in a net
poleward transport of heat.
The surface water sinks in highly restricted sinking regions located in high
Arctic thermohaline circulation
Impacts of a Warming
To read about this term in context:
GreenFacts Summary on Arctic Climate Change: