| The deep convection events are important because they form the intermediate and deep water masses feeding the global circulation. The Labrador Sea is the main site of deep convection in the North Atlantic Ocean and produces the intermediate Labrador Sea Water (LSW). The Irminger Sea was also cited but was forgotten during decades because of the lack of direct observations. This thesis provides the first description of the Irminger Sea deep convection at basin scale, thanks to the Argo data. Three convective events occurred in the Irminger Sea since 2010. During the 2011-2012 winter, the convection reached 1000 m and is explained by the sequence of the Greenland tip jets. The event of the 2013-2014 winter, reaching 1300 m, is characterized by a strong... |
