OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
|Type||Set of cruises|
|Chief scientist(s)||METZL Nicolas|
Observing and understanding the seasonal, interannual and decadal variations of the oceanic carbon cycle is crucial to better estimate the global carbon budget and understand its evolution, to investigate the global ocean acidification, and to validate diagnostic and prognostic climate models (e.g. Global Carbon Project, Global Ocean Acidification Observation Network, IPCC). To this aim, the OISO program (Océan Indien Service d'Observations), initiated in 1998, collects measurements of CO2 and associated parameters (T, S, DIC, TA, O2, nutrients, Chl-a, 13C, 18O,') along the repeated lines of R.V. Marion Dufresne in the South-Western Indian and Southern Oceans; this coverage is an important complement to the international CO2 observing system (IOCCP). The OISO program is linked to national and international programs (LEFE/CO2sink, SOERE/GREATGASES, IGBP/SOLAS//IMBER, SOCAT, GO-SHIPS, GOA-ON, SOCCOM, ...). Collaborations with French and foreign scientists (CSIRO, MRI, WHOI, LDEO, Scripps, Princeton Univ., IMCS/Rutgers Univ., Univ. East Anglia, SOC, Univ. Bruxelles, Univ Liege') are engaged since the start of the project in 1998, either to conduct process studies, to deploy autonomous floats (Carioca, Argo, BioArgo), or to use the data for global carbon budget estimates and models validation (GCP, SOCOM projects). The OISO data are regularly included in international synthesis (CDIAC, SOCAT, CARINA, GLODAP1, 2). Since 1998, OISO data have been used in about 20 phD thesis, more than 150 peer-reviewed publications including references in the last IPCC report (2013).
North : -20.0
South : -60.0
West : 40.0
East : 85.0