VT 51 / OISO 6
Type | Oceanographic cruise |
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Set | This cruise is part of the set OISO - OCÉAN INDIEN SERVICE D'OBSERVATION |
Ship | Marion Dufresne |
Ship owner | TAAF |
Dates | 03/01/2001 - 26/01/2001 |
Chief scientist(s) | METZL Nicolas , PIERRE Catherine |
LABORATOIRE D'OCÉANOGRAPHIE ET DU CLIMAT : EXPÉRIMENTATIONS ET APPROCHES NUMÉRIQUES - UMR 7159 Institut Pierre Simon Laplace Boîte 100 4 place Jussieu 75005 Paris +33 (1) 44 27 32 48 |
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DOI | 10.17600/1200010 |
Objective | OISO (Indian Ocean observation service) is an INSU-labeled observation service that federates 3 laboratories from the IPSL (Pierre Simon Laplace Institute): LPCM, LODYC, LSCE. The program aimed to study the spatial and temporal variability of the oceanic CO2 cycle and the associated air-sea exchanges in subtropical, subantarctic and austral zones, as well as the detection of CO2 from human activities in the ocean. All cruises (2/year, one during the austral summer, the other during winter) are scheduled in the corresponding South-West Indian and Antarctic sector, by following the regular routes taken by the Marion-Dufresne (inter-island logistics). In addition, during the long logistics stop at Kerguelen, 5 days of observation were scheduled to explore the interannual variability of the CO2 cycle in the Southern Ocean. Internationally speaking, especially in terms of knowledge about CO2 air-sea flow on a global scale and anthropogenic CO2 inventories, OISO observations supplemented the measurements taken in other ocean sectors (Pacific, Atlantic, South-East Indian) by foreign partners (Australia, Japan, the UK, the US, etc.). In addition to the studies on the oceanic CO2 cycle, the OISO-6 cruise included a study on the distribution of photosynthetic pigments (GebCO project extended to the OISO zone) as well as a study on the distribution of ultraphytoplankton (COM project in the framework of ANTARES). This cruise was related to the ROSAME observation service's NIVMER project. New multibeam soundings were taken during this round-trip for the SHOM and the CEA, Crohydro program). The related programs are: International IGBP/JGOFS, WCRP/CLIVAR, IGBP/SOLAS programs; national PROOF/FRAISE, PROOF/Couleur de l'Océan (color of the ocean), PROOF/GebCo, PNEDC/CLIVAR-austral and PNEDC/Changement climatique (climate change) programs. |