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Southern Indian Ocean climate evolution and its global linkages

Project description

Looking back to understand upcoming climate change in the Southern Ocean

Intergovernmental Panel on Climate Change (IPCC) projections predict an increase in temperature of 1-5 degrees Celsius by 2 100, primarily caused by anthropogenic CO2 and greenhouse gas emissions. This increase will impact polar oceans, leading to rapid changes in ocean circulation, biodiversity, and biological production/diversity, which will, in turn, affect the global economy. However, scenarios cannot accurately forecast ecosystem and climate change. Supported by the Marie Skłodowska-Curie Actions programme, the SO-Link project aims to study past oceanic conditions and biological variations during periods with warmer mean climate states than the present to improve ecosystem and climate change forecasts, particularly for the Indian sector of the Southern Ocean. The project will use advanced technology to draw conclusions that are considered crucial by climate organisations.

Objective

IPCC RCP projections indicate that Earth’s temperature will increase by 1-5°C by 2100, mainly in response to increasing anthropogenic CO2 and GHG emissions. Warming will particularly affect polar oceans (e.g. Southern Ocean (SO)) that uptake most of the anthropic CO2. Such unprecedented changes in the SO will in return strongly impact ocean-atmosphere gas exchange (lower CO2 uptake), SO-sourced ocean circulation (lower nutrient stocks) and marine biological production/diversity (lower phytoplankton stocks) through high-low latitude teleconnections, with strong repercussions on the global economy. However, RCP scenarios are mainly constrained by observational data that are too short in time to cover the full range of climate variability and, thus, to confidently forecast climate change. In this vein, the SO-Link project aims to investigate past oceanic conditions (sea-surface and deep ocean temperatures, ocean circulation, nutrient stocks) and biological variations (phytoplankton productivity and physiological state) in warmer-than-present mean climate states of the Plio-Pleistocene, as analogs of future conditions. To this goal, readily available and well-preserved sediment cores collected in 2019 in the Indian sector of the SO will be used. Innovative quantitative, geochemical and elemental investigations will be implemented on the two SO dominant phytoplankton groups (calcareous coccoliths and siliceous diatoms), based on the expertise of the applicant and host, respectively (at UBx). This knowledge is considered high priority by SCAR, IPCC, Horizon Europe, and UN Framework Conversion of Climate change, and it is in line with UN Decade of Ocean Science of the sustainable development program. The SO-Link project is of clear scientific, societal and policy relevance and will provide stakeholders (Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) for example) with unique information for comprehensive protection of SO biodiversity.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2023-PF-01

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Coordinator

UNIVERSITE DE BORDEAUX
Net EU contribution
€ 211 754,88
Address
PLACE PEY BERLAND 35
33000 Bordeaux
France
Region
Nouvelle-Aquitaine Aquitaine Gironde
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data