Objective
Compound-specific hydrogen isotope ratios (dD) of biomarker compounds (e.g. n-alkanes, fatty acids, sterols etc.) have recently emerged as a new tool to track changes in the water cycle over the geological past. The proposed project will apply this new palaeoclimate proxy for the first time to reconstruct the dominant mode of global climate variability on multi-year timescales, the El Nino Southern Oscillation phenomenon (ENSO) throughout the Holocene. To achieve this objective lake sediment cores from Islands in the Tropical Pacific, where ENSO events dramatically alter precipitation patterns and therefore the isotopic composition of meteoric water, will be recovered and analysed for their biomarker dD values. The sites cover the entire Tropical Pacific Region, from Indonesia via Galapagos to the South American West Coast. This approach will result in the first direct reconstruction of ENSO variability throughout the Holocene.
The reconstructed meteoric water dD values for specific time periods, where significant changes occur, will be evaluated using a state-of-the art Global Circulation Model (GCM) with a built in water isotope module (ECHAMiso). By variation of the models input parameters the climate of the selected time periods will be simulated. Comparing the models¿ predicted isotopic composition of the meteoric water with the reconstructed values, we will be able to identify the main forcing mechanisms of ENSO in the Holocene. The proposed project features a bottom-up organic geochemical reconstruct ion approach, using a recently available novel climate proxy and a top-down modelling approach, using an advanced GCM with built in water isotope diagnostics. Combining these two novel approaches will greatly improve our understanding of ENSO variability and its causes in the recent geological past, which are a prerequisite for credible predictions of changes in ENSO frequency or intensity caused by human interference with the climate system.
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 earth and related environmental sciences hydrology isotope hydrology
- natural sciences earth and related environmental sciences atmospheric sciences climatology climatic changes el niño
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
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.
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.
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.
FP6-2004-MOBILITY-6
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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.
OIF - Marie Curie actions-Outgoing International Fellowships
Coordinator
Germany
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.