GEOMAR Helmholtz-Zentrum für Ozeanforschung Kiel
Wischhofstr. 1-3
24148 Kiel
Tel.: 0431 600-0
Fax: 0431 600-2805
E-mail: info(at)geomar.de
14:15 h, Hörsaal, Düsternbrooker Weg 20
Abstract:
A series of GCM experiments is analyzed to quantify the dynamic effect of Southern Ocean (SO) winds on the Atlantic Meridional Overturning Circulation (AMOC). The analysis complements previous work by others that provide analytical treatments or highlight the importance of eddy fluxes. The surprising finding here is that, when taking into account full thermodynamics and basin geometry, the AMOC strength is only weakly dependent on SO winds: in the limit of weak SO winds the North Atlantic Deep Water simply upwells in the tropical Indo-Pacific. In fact, through their effect on sea-ice, weaker SO winds lead to less production of Antarctic Bottom Water and therefore a deeper and stronger AMOC.
<link service veranstaltungen wiss-veranstaltungen fb1-seminar internen link im aktuellen>Liste aller FB1 Seminarvorträge