FN Archimer Export Format PT Rapport TI SWINGS Cruise Report. MD229. N/O Marion-Dufresne. Jan 11th-March 8th 2021 BT AF Jeandel, Catherine PLANQUETTE, Helene AS 1:1;2:1; FF 1:;2:; C2 CNRS, FRANCE SI BREST SE CNRS UR https://archimer.ifremer.fr/doc/00728/83989/88934.pdf LA English DT Report CR SWINGS BO Marion Dufresne AB SWINGS is a multidisciplinary 4-year project dedicated to elucidate trace element sources, transformations and sinks along a section crossing key areas of the Southern Ocean (SO). Major French contribution to the international GEOTRACES program (www.geotraces.org), SWINGS involves ca 80 scientists (21 international laboratories, 7 countries2). As core action of SWINGS, the SWINGS cruise (R/V Marion-Dufresne, MD229, Geotraces section GS02) started from La Reunion on January 11th 2021 and ended at La Reunion 57 days later (March 8th, 2021). This cruise explored a large part of the South Indian Ocean (Figure 0-2) in order to tackle the following objectives: 1) establish the relative importance of sedimentary, atmospheric and hydrothermal sources of TEIs in the Indian sector of the SO 2) investigate the drivers of the internal trace element cycles: biogenic uptake, remineralization, particle fate, and export, and 3) quantify TEI transport by the Antarctic Circumpolar Current and the numerous fronts at the confluence between Indian and Atlantic Oceans. PY 2021 DI 10.13155/83989 ID 83989 ER EF