It is delimited by Mohns Ridge and Jan Mayen pressure zone in the South and separated by a smaller ridge to the Boreas Abyssal Plain in the North.

In 1988/89 ocean acoustic tomography was performed there[1] to study the Greenland Sea gyre and deep water formation.

Deep water formation simply means surface water being transported downwards into the ocean, this is important to drive the global ocean currents by thermohaline circulation.

The study showed that the mixed layer at the surface forms in autumn.

In early spring when the sea ice vanishes, the layer gets thicker (up to 1.5 km).