PP52A:
Southern Hemisphere Westerly Wind Dynamics and Impacts on Terrestrial and Marine Environments: Paleo and Modern Perspectives I

Submit an Abstract to this Session



Session ID#: 33934

Session Description:
Subantarctic islands are uniquely positioned at the Southern Hemisphere’s ocean and atmospheric frontal boundaries, which play a fundamental role in global climate change. These remote islands support fascinating endemic terrestrial and aquatic habitats that experience rapid ecosystem change as fronts migrate north and south with changing climate. Further, the region is directly influenced by the westerly winds, which drive circulation and air-sea gas exchange in the mid- to high latitude Southern Ocean. These islands are excellent monitors of Earth system change over a variety of time scales. However, we have yet to achieve a holistic understanding of how ocean-atmosphere processes originating at higher and lower latitudes influence the islands’ marine and terrestrial ecosystems. We invite abstracts that take a multi-disciplinary approach to evaluate climate, ocean, ecosystem or environmental change in all sectors of the subantarctic.
Primary Convener:  Zicheng Yu, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States
Conveners:  Christopher M Moy, University of Otago, Department of Geology, Dunedin, New Zealand, Jonathan E Nichols, Lamont -Doherty Earth Observatory, Palisades, United States and Louise C Sime, Ice Dynamics and Paleoclimate, British Antarctic Survey, Cambridge, United Kingdom
Chairs:  Christopher M Moy, University of Otago, Department of Geology, Dunedin, New Zealand, Zicheng Yu, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States, Louise C Sime, Ice Dynamics and Paleoclimate, British Antarctic Survey, Cambridge, United Kingdom and Moreno I Patricio, Departamento de Ciencias Ecológicas, Instituto de Ecología y Biodiversidad, Universidad de Chile, Santiago-Chile, Santiago, Chile
OSPA Liaison:  Jonathan E Nichols, LDEO-Biology & Paleoenvironment, Palisades, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • C - Cryosphere
  • GC - Global Environmental Change
  • OS - Ocean Sciences
Index Terms:

1616 Climate variability [GLOBAL CHANGE]
1627 Coupled models of the climate system [GLOBAL CHANGE]
4904 Atmospheric transport and circulation [PALEOCEANOGRAPHY]
4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

Westerly Winds and the Southern Ocean CO2 Sink Since the Last Glacial-Interglacial Transition (Invited) (273571)
Dominic A Hodgson1, Krystyna M Saunders2, Stephen J Roberts3, Bianca Perren3, Christoph Butz4, Louise C Sime5, Sarah Jane Davies6 and Martin Grosjean7, (1)British Antarctic Survey, Bremerhaven, United Kingdom, (2)Kiel, Germany, (3)NERC British Antarctic Survey, Cambridge, United Kingdom, (4)University of Bern, Bern, Switzerland, (5)Ice Dynamics and Paleoclimate, British Antarctic Survey, Cambridge, United Kingdom, (6)Aberystwyth University, Geography and Earth Sciences, Aberystwyth, United Kingdom, (7)University of Bern, Institute of Geography & Oeschger Centre for Climate Change Research, Bern, Switzerland
Glacier History of the Northern Antarctic Peninsula Region Since the End of the Last Ice Age and Implications for Southern Hemisphere Westerly-Climate Changes (Invited) (279703)
Michael R Kaplan, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Joerg M Schaefer, Columbia University - Lamont, Palisades, NY, United States, Jorge A Strelin, Universidad Nacional de Córdoba, Centro de Investigaciones en Ciencias de la Tierra (CICTERRA-CONICET), Córdoba, Argentina, Carly Peltier, Dartmouth College, Department of Earth Sciences, Hanover, United States, John Richard Southon, Univ California, Earth System Science, Irvine, United States, Kenneth E Lepper, North Dakota Univ, Fargo, ND, United States and Gisela Winckler, Columbia U. / LDEO, Palisades, NY, United States
Sensitivity of southern hemisphere westerly wind to boundary conditions for the last glacial maximum (246775)
Sang-Yoon Jun, Korea Polar Research Institute, Incheon, Korea, Republic of (South), Seong-Joong Kim, Korea Polar Research Institute, Division of Atmospheric Sciences, Incheon, Korea, Republic of (South) and Baek-Min Kim, Korea Polar Research Institute, Incheon, South Korea
Southern westerly winds: a pacemaker of Holocene glacial fluctuations in Patagonia? (257165)
Esteban A Sagredo, Pontifical Catholic University of Chile, Santiago, Chile, Scott Reynhout, Self Employed, Washington, DC, United States, Michael R Kaplan, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Moreno I Patricio, Departamento de Ciencias Ecológicas, Instituto de Ecología y Biodiversidad, Universidad de Chile, Santiago-Chile, Santiago, Chile, Juan C Aravena, Universidad de Magallanes, Gaia Antártica, Punta Arenas, Chile, Mateo Antonio Martini, Centro de Investigaciones en Ciencias de la Tierra, Cordoba, Argentina and Joerg M Schaefer, Columbia University - Lamont, Palisades, NY, United States
How are recent changes in Southern Hemisphere Westerly Winds affecting East Antarctic terrestrial plants? (250436)
Sharon Anita Robinson1, Melinda J Waterman2, Jessica Bramley-Alves2, Laurence J Clarke2,3 and Quan Hua4, (1)University of Wollongong, Centre for Sustainable Ecosystem Solutions, Wollongong, NSW, Australia, (2)University of Wollongong, Centre for Sustainable Ecosystem Solutions, Wollongong, Australia, (3)Australian Antarctic Division, Kingston, TAS, Australia, (4)Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, Australia
A new daily observational record from Grytviken, South Georgia: exploring 20th century extremes in the South Atlantic (279626)
Zoe Thomas1, Chris SM Turney1, Rob Allan2, Steve Colwell3, Gail Kelly2, David Lister4, Philip D Jones5, Mark Beswick6, Lisa Alexander7, Tanya Lippmann8, Nicholas Herold9 and Richard T Jones10, (1)University of New South Wales, Sydney, NSW, Australia, (2)Met Office Hadley Centre, Exeter, United Kingdom, (3)NERC British Antarctic Survey, Cambridge, United Kingdom, (4)University of East Anglia, Norwich, United Kingdom, (5)Univ of East Anglia, Norfolk, United Kingdom, (6)National Library & Archive, Met Office, Exeter, United Kingdom, (7)University of New South Wales, Climate Change Research Centre and ARC Centre of Excellence for Climate System Science, Sydney, Australia, (8)Vrije Universiteit Amsterdam, Amsterdam, Netherlands, (9)University of New South Wales, Sydney, Australia, (10)University of Exeter, Exeter, United Kingdom

See more of: Paleoceanography and Paleoclimatology