Objectif The monsoon system in the Indian Ocean exerts a strong influence upon the climatic conditions in south and Southeast Asia and the associated monsoon rainfall have great impact on the socio-economic and agriculture development in the densely populated south Asia. Therefore, understanding and predicting the monsoon behavior in response to global change is a high scientific priority. Most of the monsoon reconstructions from the Arabian Sea are based on the upwelling indices, which essentially represent the South West (SW) monsoon wind strength rather than precipitation. A robust indicator of monsoon rainfall is a key requirement to reconstruct monsoon variability. In this regard, Bay of Bengal is a highly suitable region to evaluate the SW monsoon precipitation mainly because four major rivers Irrawaddy, Brahmaputra, Ganges and Godavari discharge annually approximately 1.5x1012m3 of fresh water into the Bay of Bengal. In this context, we propose to exploit marine sediment archives from the Bay of Bengal to reconstruct monsoon rainfall changes on centennial time scale by using very sensitive proxy (salinity) over the last 25-30 kyrs. This will bridge the gap between the instrumental record showing (interannual to decadal variability) and the existing paleoceanographic records (mainly glacial-interglacial to millennial time scales) and use these monsoon reconstructions to explore the teleconnections between monsoon activity and global climate.Ratios of oxygen isotopes and Mg/Ca in planktic foraminifera and quantitative SST estimates based on planktic foraminifer will be used to reconstruct sea surface temperature and salinity changes at century scale. These will be complimented with other surface ocean changes inferred from planktic foraminifer assemblages. These records, in turn, are used to unravel temporal link between monsoon records and other records of low-and high-latitudes climate change. Champ scientifique agricultural sciencesagriculture, forestry, and fisheriesagriculturenatural sciencesearth and related environmental sciencesatmospheric sciencesclimatologyclimatic changes Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Thème(s) FP7-PEOPLE-2010-IIF - Marie Curie Action: "International Incoming Fellowships" Appel à propositions FP7-PEOPLE-2010-IIF Voir d’autres projets de cet appel Régime de financement MC-IIF - International Incoming Fellowships (IIF) Coordinateur THE UNIVERSITY OF EDINBURGH Contribution de l’UE € 280 680,00 Adresse OLD COLLEGE, SOUTH BRIDGE EH8 9YL Edinburgh Royaume-Uni Voir sur la carte Région Scotland Eastern Scotland Edinburgh Type d’activité Higher or Secondary Education Establishments Contact administratif Angela Noble (Ms.) Liens Contacter l’organisation Opens in new window Site web Opens in new window Coût total Aucune donnée
