Objective
The Southern Ocean (SO) is the main connection between the sunlit surface and the nutrient- and carbon-rich deep ocean. Deep waters are brought to the surface here, resulting in outgassing of carbon dioxide (CO2) and providing nutrients to the global surface ocean. The SO thus has great importance for the carbon cycle and marine cycles of nutrients, most markedly that of silicon (Si). Si is vitally required by diatoms, siliceous phytoplankton that are important in exporting carbon from the surface ocean and maintaining the ocean’s biological pump, linking the Si and carbon cycles.
The SO is the main window via which the ocean exchanges carbon with the atmosphere, and has been implicated in altering atmospheric pCO2 over glacial/interglacial (G/IG) cycles. SO Si cycling has also varied over G/IG timescales, reflected by changes in the accumulation rate and silicon stable isotope composition (d30Si) of diatom opal recovered from sediment cores. These proxies suggest that changes to SO nutrient dynamics allowed it to export Si to the upper ocean in glacial times, with widespread consequences for plankton biogeography, carbon cycling and climate. The d30Si proxy is a vital constraint in these reconstructions, but while extant records demonstrate its potential, they are too sparse and poorly-resolved to allow robust conclusions.
Our goal is a step change in our understanding of SO cycling of Si and its isotopes, both in the present and over G/IG cycles. We aim to:
- Study the seawater d30Si distribution across the fronts of the SO, in order to better understand modern Si transport between the regions of upwelling (Antarctic zone) and thermocline supply (Subantarctic zone);
- Produce high-resolution diatom opal d30Si records from sediment cores in the Antarctic and Subantarctic zones that, informed by insights from the modern ocean and combined with complementary data from collaborators, will provide an unprecedented view of SO Si cycling over the last 150,000 years.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences microbiology phycology
- natural sciences biological sciences ecology ecosystems
- natural sciences chemical sciences inorganic chemistry metalloids
- natural sciences earth and related environmental sciences physical geography glaciology
- natural sciences earth and related environmental sciences geochemistry biogeochemistry
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF-EF-ST - Standard EF
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2015
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
8092 Zuerich
Switzerland
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.