PP43F:
The Last Glacial Termination in the Middle and High Latitudes of the Southern Hemisphere Posters


Submit an Abstract to this Session


Session ID#: 50097

Session Description:
The Last Glacial Termination represents one of the largest global climatic changes in the past 800 thousand years. It involved rapid melting of ice masses across the planet, reorganization of the coupled ocean-atmosphere system, sea level rise, increases in atmospheric greenhouse gases, and major changes in biota. The tight coupling between atmosphere, ocean, cryosphere, and biosphere in the southern extra-tropics make this area particularly interesting for constraining the mechanisms governing rapid, widespread, large-magnitude climate changes. We invite abstracts from all disciplines, including terrestrial, marine, and modelling studies, that focus on the Last Glacial Termination in the mid- and high latitudes of the Southern Hemisphere. This session will provide a multi-disciplinary environment to discuss timing, structure, and mechanisms of the sequence of events that shaped paleoclimatic changes during this time period.
Primary Convener:  Esteban A Sagredo, Pontifical Catholic University of Chile, Santiago, Chile
Conveners:  Moreno I Patricio, Instituto de Ecología y Biodiversidad (IEB), Centro Fondap (CR)2, Nucleo Milenio en Paleoclima Hemisferio Sur., Santiago de Chile, Chile and Fabrice Lambert, Pontificia Universidad Católica de Chile, Instituto de Geografia, Macul, Chile
Primary Liaison:  Esteban A Sagredo, Pontifical Catholic University of Chile, Santiago, Chile
Chairs:  Esteban A Sagredo, Pontifical Catholic University of Chile, Santiago, Chile, Moreno I Patricio, Instituto de Ecología y Biodiversidad (IEB), Centro Fondap (CR)2, Nucleo Milenio en Paleoclima Hemisferio Sur., Santiago de Chile, Chile and Fabrice Lambert, University of Chile, Santiago, Chile
OSPA Liaison:  Fabrice Lambert, University of Chile, Santiago, Chile

Cross-Listed:
  • A - Atmospheric Sciences
  • GC - Global Environmental Change
Index Terms:

1605 Abrupt/rapid climate change [GLOBAL CHANGE]
1620 Climate dynamics [GLOBAL CHANGE]
1622 Earth system modeling [GLOBAL CHANGE]
3344 Paleoclimatology [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

A mountain glacier perspective on the role of the austral westerlies in the last glacial termination (417005)
Aaron E Putnam, University of Maine, Earth and Climate Sciences, Orono, United States, Joellen L Russell, University of Arizona, Department of Geosciences, Tucson, AZ, United States and George Denton, University of Maine, School of Earth and Climate Sciences and Climate Change Institute, Orono, ME, United States
Rapid warming during the Last Glacial Termination documented by a 10Be moraine chronology at Tekapo basin, Southern Alps of New Zealand (449144)
Peter Strand, University of Maine, School of Earth and Climate Sciences, Orono, United States, Joerg M Schaefer, Lamont-Doherty Earth Observatory, Palisades, NY, United States, George Denton, University of Maine, School of Earth and Climate Sciences and Climate Change Institute, Orono, ME, United States, Aaron E Putnam, University of Maine, Climate Change Institute, Orono, United States and David Barrell, GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand
Anatomy of glacial fluctuations during the Last Glacial Termination in Northwestern Patagonia (465582)
Rodrigo León Soteres1, Esteban A Sagredo1, Michael R Kaplan2, Mateo Antonio Martini3, Pablo I. Ugalde1, Scott Reynhout4 and Joerg Schaefer2, (1)Pontifical Catholic University of Chile, Santiago, Chile, (2)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)Centro de Investigaciones en Ciencias de la Tierra, Cordoba, Argentina, (4)Self Employed, Washington, DC, United States
Culmination and demise of the Northern Patagonian Ice Sheet (43°S) during the last glacial-interglacial transition (401349)
Esteban A Sagredo1, Rodrigo León Soteres1, Gaspar F. González1, Pablo I. Ugalde1 and Moreno I Patricio2, (1)Pontifical Catholic University of Chile, Santiago, Chile, (2)Instituto de Ecología y Biodiversidad (IEB), Centro Fondap (CR)2, Nucleo Milenio en Paleoclima Hemisferio Sur., Santiago de Chile, Chile
Early deglaciation and paleolake history of the Río Cisnes Glacier, Patagonian Ice Sheet 44°S (418047)
Juan-Luis García1, Antonio Maldonado2, María Eugenia de Porras3, Amalia Nuevo Delaunay4, Omar Reyes5, Claudia Ebensperger6, Steven Binnie7, Christopher Luethgens8 and César Méndez4, (1)Pontificia Universidad Católica de Chile, Physical Geography, Santiago, Chile, (2)Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile, (3). Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), Mendoza, Argentina, (4)Centro de Investigación en Ecosistemas de la Patagonia, Coyhaique, Chile, (5)Centro de Estudios del Hombre Austral, Universidad de Magallanes, Punta Arenas, Chile, (6)Pontificia Universidad Católica de Chile, Santiago, Chile, (7)Institut für Geologie und Mineralogie, Universität zu Köln, Koeln, Germany, (8)BOKU University of Natural Resources and Life Sciences, Vienna, Austria
The Southern Ocean’s role in rising CO2 and melting glaciers (341094)
Thomas Ronge1, Jörg Lippold2, Walter Geibert3, Frank Lamy4, Gesine Mollenhauer1, Finn Süfke5 and Ralf Tiedemann6, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (2)Institute of Earth Sciences, Heidelberg University, Heidelberg, Germany, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Marine Geochemistry, Bremerhaven, Germany, (4)AWI Bremerhaven, Bremerhaven, Germany, (5)University of Heidelberg, Heidelberg, Germany, (6)Alfred-Wegener-Institute, Bremerhaven, Germany
Variability of the Southern Westerly Winds During the Last Glacial Termination in Southwestern Patagonia (52°S) (426974)
William Ivan Henriquez, Victoria University of Wellington, Wellington, New Zealand, Moreno I Patricio, Instituto de Ecología y Biodiversidad (IEB), Centro Fondap (CR)2, Nucleo Milenio en Paleoclima Hemisferio Sur., Santiago de Chile, Chile and Rodrigo Patricio Villa-Martinez, Universidad de Magallanes, GAIA-Antartica, Punta Arenas, Chile
Southern Ocean Upwelling During the Last Deglaciation - Dynamical Control of Southern Hemisphere Westerlies and Sea ice. (367032)
Gagan Mandal1, Shih-Yu Lee1 and Jia-Yuh Yu2, (1)Research Center for Environmental Changes Academia Sinica, Taipei, Taiwan, (2)National Central University, Department of Atmospheric Sciences, Taoyuan, Taiwan
Mid-depth Nutrient and pH Dynamics During the Last Glacial Cycle from the Indo-Pacific Sector of the Southern Ocean (404238)
Eleni Anagnostou1,2, Sophia Hines3, Thomas Ben Chalk4, Robert M Sherrell5, Martin Frank2, Jess F Adkins6 and Gavin L Foster4, (1)ETH Zurich, Zurich, Switzerland, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (3)Lamont-Doherty Earth Observatory, Palisades, United States, (4)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, (5)Rutgers University, Department of Marine and Coastal Sciences and Department of Earth and Planetary Sciences, Piscataway, United States, (6)California Institute of Technology, Pasadena, CA, United States
The impact of Southern Ocean sea-ice formation on ocean circulation and stratification during glacial climates (402985)
Karl Joseph Stein1, Axel Timmermann1 and Tobias Friedrich2, (1)Center for Climate Physics, Institute for Basic Science, Busan, South Korea, (2)IPRC-SOEST, Honolulu, United States
Abyssal Ventilation in the Pacific Sector of the Southern Ocean During the Last Ice Age (410805)
Frank J Pavia, Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States, Robert F Anderson, Lamont-Doherty Earth Observatory, Palisades, NY, United States and Shou Yi Wang, Columbia University of New York, Palisades, NY, United States
Sr-Nd isotopes and clay mineralogy on the South Indian Ridge: evidence of stronger equatorward export of AABW during Heinrich Stadial 1 and 2. (406499)
Beny Francois, University of Lille 1, Villeneuve d'Ascq, France, Viviane Bout-Roumazeilles, Univ. of Lille 1, Villeneuve D'Ascq, France and Gareth Davies, VU Amsterdam, Amsterdam, Netherlands

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