Labrador Sea Water

During winter months low pressure dominates in this region,[5] and in years with a positive North Atlantic Oscillation deeper convection is observed.

In late spring and summer, large amounts of cold freshwater accumulate from melting ice and are mixed downward during convection.

The source for heat in the Labrador Sea is modified North Atlantic Current water after circulating the subpolar gyre.

[3] Due to weakened convection, Labrador Sea Water began warming significantly and increased in salinity over the following decade.

Deep convection was observed again in 2012 with the Labrador Sea Water reaching 1400m, corresponding with a positive North Atlantic Oscillation similar to those seen in the early 1990s.