Pr. Meng Zhou from the University of Massachusetts, Boston is the invited researcher of OT-Med (within the framework of OT-Med mobility fellowships). He presented the talk entitled: " Adventure in Kerguelen Plateau, southern Indian Ocean: Revealing circulation, upwelling and settling of particulate organic matter " on Friday 13 December 2013 at 15h00 in the room 205 of CEREGE, Europôle Méditerranéen de l'Arbois, rue Louis Philibert, Aix-en-Provence, France.

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ABSTRACT

The fieldwork of KErguelen Ocean and Plateau compared Study–II (KEOPS–II) was conducted on the RV Marion Dufresne between October 9 and November 30, 2011 in the high nutrient low chlorophyll (HNLC) waters around Kerguelen Island and plateau. To study mesoscale physical processes of horizontal and vertical transport, 48 World Ocean Circulation Experiment (WOCE) Surface Velocity Program (SVP) drifters were deployed , a Laser In Situ Scattering Transmissometry (LISST) and Laser Optical Plankton Counter (LOPC) were mounted on a CTD – rosette and deployed for size fractionated plankton between 1 µm and 1 mm, and QuikSCAT wind data were used. The analysis and inter-comparison of these data revealed the topographically controlled shelf slope jet, the area of cross-shelf transport, and wind induced Ekman pumping in the off-shelf region forming a configuration of coupled multiple physical processes delivering iron to the surface euphotic zone.