Session OSM 15
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Image Credit: Jörg Lippold |
The Role of Ocean Circulation in Climate Dynamics
Convenors
Frank Lamy, Jörg Lippold, A. D. Singh, Devesh K Sinha
Description
Ocean circulation changes including atmosphere-ocean interactions and teleconnections between high and low latitudes play an important role for understanding processes and feedbacks of past and future climate change. Important surface and deep ocean circulation changes occurred at tectonic timescales, related to the opening and closure of major ocean gateways, and at orbital timescales where the ocean substantially contributes to the forcing of glacial-interglacial climate cycles.
Furthermore, millennial to decadal-scale circulation in the global thermohaline circulation and more regional oceanographic features are supposed to be responsible for rapid climate changes particularly relevant for human societies. We invite proxy-data and model-based contributions on all aspects of large and regional-scale ocean circulation and related atmospheric dynamics.
Talks and Posters
Talks
Friday, 15 February 14:00 - 15:30
Chair: Arun D. Singh, Devesh K Sinha
14:00 - 14:15
Influence of the tropical hydrologic cycle on Atlantic meridional overturning at the end of the last interglacial
Benjamin Blazey, Matthias Prange, Andrè Paul, Aline Govin
14:15 - 14:30
Stability of the thermohaline circulation during MIS in a comprehensive climate model: Towards a dynamical understanding of Dansgaard-Oeschger events
Matthias Prange, Xiao Zhang, Ute Merkel, Michael Schulz
14:30 - 14:45
Increase proportion of Antarctic Intermediate Water off northern Chile (7°S) in glacial periods over the past million years
Gema Martínez-Méndez, Dierk Hebbeln, Mahyar Mohtadi, Mieke Thierens,, Frank Lamy, Tim Freudenthal
14:45 - 15:00
Mid-Holocene amplification of century scale climate variability - potential interhemispheric linkages
Eystein Jansen, Carin Andersson, Jostein Bakke, Dokken Trond, Øyvind Lie, Matthias Moros, Atle Nesje, Odd Helge Otteraa, Bjørg Risebrobakken
15:00 - 15:15
Millennial scale variability in the upstream Agulhas Current
Margit H. Simon, Ian R. Hall, Kristina L. Arthur, Benjamin R. Loveday, Frank J. C. Peeters, Stephen Barker, Martin Ziegler
15:15 - 15:30
Reduced flow of North Atlantic Deep Water into the Arabian Sea during Last Glacial Maxima: Evidence from 187 Os/ 188 Os of the Arabian Seawater
Goswami Vineet, Sunil Kumar Singh, Ravi Bhushan
Posters
Display: Friday, 15 February and Saturday, 16 February
Author attendance: Friday 16:00 - 18:00
Chair: Arun D. Singh, Devesh K Sinha
Antarctic linkages to the deep water flow variability during the past 95000 years in the Indian sector of the Southern Ocean
M C Manoj, Meloth Thamban, Rahul Mohan
Cold-water corals of the West: North Carolina contribute to a North Atlantic basin study
Lelia Matos, Furu Mienis, Norbert Frank5, Claudia Wienberg, Dierk Hebbeln
Control of the Northern Hemisphere Ice Sheets on Glacial Climate Stability
Xu Zhang, Gerrit Lohmann
Eastern South Pacific water mass geometry during the last glacial-interglacial transition
Ricardo De Pol-Holz, Dharma Reyes, Mahyar Mohtadi
Evolution of the Mediterranean Outflow Water and its oceanographic - climatic implications: Preliminary Results of IODP Expedition 339 in the Gulf of Cadiz and west off Portugal
Arun D Singh, F Javier Hernández-Molina, Dorrik Stow, Carlos Alvarez-Zarikian4, Scientists Expedition IODP 95
Holocene Atlantic bottom water inflow at the western Barents Sea margin, European Arctic
Diane Groot, Steffen Aagaard-Sørensen, Katrine Husum
Late Neogene planktic foraminiferal events of ODP Site 762B, Exmouth Plateau, eastern Indian Ocean: Regional Diachrony and evidence of late Pliocene Ocean Circulation Changes
Ashutosh Singh, Devesh Sinha
Location of the Marine ITCZ in the Atlantic Ocean over the last 30 ka
Caroline Cleroux, Peter deMenocal, Jennifer Arbuszewski
Meeting the challenge of global high resolution paleoclimate modelling
Paul Spence
Mo isotopes in tropical estuaries: Implication to paleo-redox proxy
Waliur Rahaman, Sunil K. Singh, Vinai K. Rai
Oceanographic and climate variability in the Bay of Bengal over the last 60 kyr BP: Foraminiferal evidences
Komal Verma, Santanu Bhattacharya, Mirtunjay Chaturvedi, Subhradeep Das4, Sumit Jaiswal5, Arun D. Singh6
Oxygen Isotope–Salinity Relationship for Paleosalinity Estimation in distinct water masses of Indian & Southern Ocean
Kartik Thammisetti, Manish Tiwari, Siddhesh Nagoji
Reconstructing Plio-Pleistocene Intermediate Water Temperatures Using Mg/Ca of Infaunal Foraminifera (Uvigerina peregrina)
Aurora Elmore, Erin McClymont, Harry Elderfield, Sev Kender, Benjamin Petrick
Seasonality reconciles the discrepancies of sea surface temperature evolution in the Indian Ocean during the last deglaciation
Yiming Wang, Guillaume Leduc, Marcus Regenberg, Nils Andersen, Thomas Blanz, Thomas Larsen, Ralph Schneider
Sub-centennial Holocene fluctuations of Atlantic water inflow and sea ice distribution in the western Barents Sea, European Arctic
Sarah Berben, Katrine Husum, Patricia Cabedo Sanz, Simon Belt
Suborbital ice-sheets variability in the subpolar North Atlantic during the Early and Mid-Pleistocene (MIS 31–19) as a response of low-latitude forcing
Iván Hernández-Almeida, Francisco Javier Sierro, Isabel Cacho, José Abel Flores
