Poleward Shift in Ventilation of the North Atlantic Subtropical Underwater (STUW)
[17-Dec-2017] Yu, L., X. Jin, and H. Liu. The subtropical high pressure of the descending branch of the Hadley circulation is located between 20° and 40° of both north and south latitudes. Within the zone, a pool of sea surface salinity maximum (SSS-max) exists in responding to the excess of evaporation over precipitation. This study is to report that the SSS-max in the North Atlantic has poleward expanded in recent decades, and that the expansion is a main driver of the decadal changes in subtropical underwater - a high-saline water mass in the upper 50-300m.