PP51B:
Climate Variability in the Mid-to-High-Latitude Southern Hemisphere since the Last Glacial Maximum I Posters


Session ID#: 8595

Session Description:
In contrast to the Northern Hemisphere, the climate of the ocean-dominated Southern Hemisphere (SH) is regulated by strongly zonal atmospheric and oceanic circulation patterns. Proxy records suggest that the strength and position of these zonal features, particularly the SH westerly winds, have changed significantly since the Last Glacial Maximum (LGM) at ~21,000 years BP. Such changes have climatic influence beyond the SH, due to interactions between the westerlies, the Southern Ocean, and the global carbon cycle.  However, records of climate variability from this region are spatially limited by a relatively small landmass area and by the difficulty of obtaining records. This session aims to bring together recent investigations of post-LGM, mid-to-high latitude SH climate variability. We encourage submissions that present new proxy-based reconstructions of climate change from marine and terrestrial archives. We also invite submissions of modeling studies that examine climate forcing mechanisms and regional responses.
Primary Convener:  Jessica Hinojosa, University of Otago, Dunedin, New Zealand
Conveners:  Bess G Koffman, Colby College, Geology, Waterville, United States and Heidi A Roop, University of Minnesota, St Paul, United States
Chairs:  Bess G Koffman, Colby College, Geology, Waterville, United States, Jessica Hinojosa, University of Otago, Dunedin, New Zealand and Heidi A Roop, University of Minnesota, St Paul, United States
OSPA Liaison:  Bess G Koffman, Colby College, Geology, Waterville, United States
Index Terms:

1616 Climate variability [GLOBAL CHANGE]
1620 Climate dynamics [GLOBAL CHANGE]
4999 General or miscellaneous [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

A complex deglacial retreat history of the Anvers Island Trough paleo-ice stream (72931)
Dr. Amelia Shevenell, Ph.D., University of South Florida, College of Marine Science, St Petersburg, FL, United States, Scott E Ishman, Southern Illinois Univ, Carbondale, IL, United States, Eugene W Domack, University of South Florida, Tampa, FL, United States, Amy Leventer, Colgate University, Hamilton, United States, Brad E Rosenheim, University of South Florida, College of Marine Science, Saint Petersburg, United States and Kara Jayne Vadman, University of South Florida, College of Marine Science, Tampa, United States
The Roosevelt Island Climate Evolution (RICE) ice core: climate and ice dynamics of the Ross Sea, West Antarctica (82281)
James Edward Lee1, Edward J Brook2, Thomas Blunier3, Jeffrey P Severinghaus4, Nancy A.N. Bertler5, Edwin D Waddington6, Paul Travis Vallelonga7, Howard Conway8, Dorthe Dahl-Jensen9, Christo Buizert2, T. J. Fudge10, Frédéric Parrenin11 and Roosevelt Island Climate Evolution Project Members, (1)Los Alamos National Laboratory, Earth and Environmental Science Division, Los Alamos, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (3)Niels Bohr Institute - University of Copenhagen, Copenhagen, Denmark, (4)Scripps Institution of Oceanography, La Jolla, United States, (5)Victoria University of Wellington, Antarctic Research Centre, Wellington, New Zealand, (6)University of Washington, Seattle, WA, United States, (7)Centre for Ice and Climate, Copenhagen, Denmark, (8)University of Washington Seattle Campus, Seattle, WA, United States, (9)University of Copenhagen, Physics of ice, climate and earth, Niels Bohr Institute, Copenhagen, Denmark, (10)University of Washington, Earth and Space Sciences, Seattle, United States, (11)Univ. Grenoble Alpes, CNRS, IRD, IGE, Saint Martin d'Hères, France
Foraminifer- and diatom-based paleoceanographic study of Holocene sediments from the Sabrina Coast, East Antarctica (68608)
Kara Jayne Vadman, University of South Florida, College of Marine Science, Tampa, United States, Dr. Amelia Shevenell, Ph.D., University of South Florida, Tampa, United States, Amy Leventer, Colgate University, Hamilton, United States, Eugene W Domack, University of South Florida, Tampa, FL, United States, Bruce A Huber, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Alejandro Hector Orsi, Texas A & M University, College Station, TX, United States and Sean P S Gulick, The University of Texas at Austin, Institute for Geophysics, Austin, United States
The Northern Extent of the Southern Hemisphere Westerly Wind Belt since the Last Glacial Maximum Tracked via Sediment Provenance (81265)
Allison M Franzese, CUNY Hostos Community College, Natural Sciences, Bronx, United States, Steven L Goldstein, Lamont-Doherty Earth Observatory, Palisades, United States and Sidney R Hemming, Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States
Postglacial Records of Southern Hemisphere Westerly Wind Variability From the New Zealand Subantarctic Auckland Islands (84974)
Christopher M Moy1, Marcus Vandergoes2, Greer Gilmer3, Jonathan E Nichols4, Bob J Dagg5, Gary S Wilson6, Dr. Imogen Mireille Browne, MSc, PhD7, Lorelei Curtin8, Chris Aebig3 and Matt McGlone9, (1)University of Otago, Department of Geology, Dunedin, New Zealand, (2)GNS Science, Lower Hutt, New Zealand, (3)University of Otago, Dunedin, New Zealand, (4)Lamont -Doherty Earth Observatory, Palisades, United States, (5)NZ Government/DIA, New Zealand, New Zealand, (6)University of Otago, Department of Marine Science, Dunedin, New Zealand, (7)University of South Florida, College of Marine Science, St. Petersburg, United States, (8)University of Wyoming, Geology & Geophysics, Laramie, United States, (9)Landcare Research, Lincoln, New Zealand
Climatic Impact of the Bølling–Allerød over Eastern South America (70593)
Maria Carolina Amorim Catunda, USP University of Sao Paulo, Sedimentary and Environmental Geology Department, São Paulo, Brazil, Cristiano M Chiessi, Escola de Artes, Ciências e Humanidades, Universidade de São Paulo, São Paulo, Brazil, São Paulo, Brazil, Nicolas M Strikis, Universidade Federal Fluminense, Geochemestry Department, Niteroi, Brazil, Stefan Mulitza, MARUM−Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany, Bremen, Germany, Francisco William Cruz Sr., University of Sao Paulo, Institute of Geosciences, Sao Paulo, Brazil and Mathias F Vuille, University at Albany State University of New York, Albany, NY, United States
The Last Termination in the Central South Atlantic (71742)
Karl Ljung1, Sofia Holmgren2, Malin E Kylander3, Jesper Sjolte2, Nathalie Van der Putten2, Masa Kageyama4, Charles T Porter Jr5 and Svante Bjorck6, (1)Lund University, Dep of Geology, Lund, Sweden, (2)Lund University, Geology, Lund, Sweden, (3)Stockholm University, Department of Geological Sciences, Stockholm, Sweden, (4)Laboratoire des Sciences Du Climat et de L’Environnement, LSCE/IPSL, CEA-CNRS-UVSQ Université Paris-Saclay, Gif-Sur-Yvette, France, (5)Patagonian Research Foundation, Puerto Williams, Chile, (6)Geobiosphere Sci Ctr, Lund, Sweden
Late Quaternary carbonate accumulation along eastern South Atlantic Ocean (83738)
Katherine Crabill, Texas A & M University, College Station, TX, United States, Niall C. Slowey, Texas A & M University, Oceanography, College Station, TX, United States, Alan Dean Foreman, Max-Planck Institute for Chemsitry, Mainz, Germany and Christopher D Charles, Scripps Institution of Oceanography, La Jolla, United States
Millennial Scale Events Of The Last 40 Ky In The South Atlantic: From The Tropics To The Subantarctic (72717)
Natalia Vazquez Riveiros1, Claire Waelbroeck2, Helge W Arz3, Julia Gottschalk4, Luke Cameron Skinner4 and Trond M Dokken5, (1)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, (2)CNRS, Paris Cedex 16, France, (3)Leibniz Institute for Baltic Sea Research, Rostock, Germany, (4)University of Cambridge, Cambridge, United Kingdom, (5)Uni Research Climate, and Bjerknes Centre for Climate Research, Bergen, Norway

See more of: Paleoceanography and Paleoclimatology