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Poleward Shift in Ventilation of the North Atlantic Subtropical Underwater (STUW)
[17-Dec-17] 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.
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