The AMO is associated with a hemispheric wavenumber-1 sea level pressure (SLP) structure in the atmosphere
The SLP pattern and its associated wind field affect the sea ice export through Fram Strait, the freshwater balance
in the northern North Atlantic, and consequently the strength of the large-scale ocean circulation.
It generates sea surface temperature anomalies with opposite signs in the North Atlantic and completes a negative feedback.

Two great Siberian rivers, Ob and Yenisey discharging ~32,000 m3/s of fresh water in the Arctic Ocean.
The fresh water is carried by the surface currents above heavier saline ones, freezing during winter months.



In following summers broken ice is carried by ocean currents through the Fram Strait and further along East Greenland coast.
Some 12 years later portion of these waters will pass through the Denmark Strait as the East Greenland Current,
one of the main contributors to the Sub-Polar Gyre -SPG, affecting salinity and thermo-haline circulation.
The SPG is the home of the Atlantic Multidecadal Oscilation and the AMO.
There is a direct correlation of the AMO (the SPG) with geomagnetic changes 12 years earlier,
at the delta of the two great Siberian rivers 6,000km away.