PC52A:
The Role of the Southern Ocean in the Global Carbon Cycle II


Session ID#: 36875

Session Description:
The Southern Ocean is estimated to account for approximately half of the global oceanic sink of anthropogenic carbon, thus playing a key role in the climate system. Changes in the carbon cycle in this region are also thought to exert a strong influence on glacial-interglacial cycles. Recent work has highlighted large interannual variability in the Southern Ocean sink, and new observational estimates of the carbon cycle are emerging from biogeochemical floats and atmospheric measurements. The Southern Ocean remains, however, the basin least constrained by observations, with the largest disagreement among climate models and between models and observations. Changes to our understanding of the Southern Ocean carbon cycle have significant implications for the carbon budgets of the atmosphere and land components of the climate system. We invite abstracts that investigate these topics in both the modern and paleo-climate eras, in particular the magnitude and spatial distribution of the different parts of the Southern Ocean carbon cycle; the variability of the carbon cycle on seasonal to decadal timescales and centennial to glacial-interglacial timescales; and the impact on and interactions with the atmosphere, land, and world ocean.
Primary Chair:  Alison R Gray, University of Washington, School of Oceanography, Seattle, WA, United States
Co-chairs:  Laure Resplandy, Princeton University, Department of Geosciences, Princeton, NJ, United States, Carolina O. Dufour, McGill University, Atmospheric and Oceanic Sciences, Montreal, Canada and Ralph F Keeling, University of California-San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Moderators:  Laure Resplandy, Princeton University, Department of Geosciences, Princeton, NJ, United States, Alison R Gray, University of Washington, School of Oceanography, Seattle, WA, United States and Carolina O. Dufour, McGill University, Atmospheric and Oceanic Sciences, Montreal, Canada
Student Paper Review Liaison:  Alison R Gray, University of Washington, School of Oceanography, Seattle, WA, United States
Index Terms:

1610 Atmosphere [GLOBAL CHANGE]
1616 Climate variability [GLOBAL CHANGE]
4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]
Cross-Topics:
  • AI - Air-Sea Interactions
  • BN - Biogeochemistry and Nutrients
  • HE - High Latitude Environments

Abstracts Submitted to this Session:

Jorge L Sarmiento, Princeton University, Atmospheric and Oceanic Sciences Program, Princeton, NJ, United States, Alison R Gray, University of Washington, School of Oceanography, Seattle, WA, United States, David F Baker, Colorado State University, CIRA, Fort Collins, CO, United States, Seth M Bushinsky, Princeton University, Atmospheric and Oceanic Sciences, Princeton, NJ, United States, Laure Resplandy, Princeton University, Department of Geosciences, Princeton, NJ, United States, Christian Rödenbeck, Max Planck Institute for Biogeochemistry, Jena, Germany and Peter Landschuetzer, Max Plank Institute for Meteorology, Hamburg, Germany
Amanda R Fay1, Nicole S Lovenduski2, Galen A McKinley1, David R Munro3, Colm Sweeney4, Britton B Stephens5, Peter Landschutzer6, Nancy L Williams7 and Alison R Gray8, (1)Lamont -Doherty Earth Observatory of Columbia University, Palisades, NY, United States, (2)University of Colorado, Boulder, CO, United States, (3)University of Colorado, Department of Atmospheric and Oceanic Sciences and Institute for Arctic and Alpine Research, Boulder, CO, United States, (4)Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States, (5)National Center for Atmospheric Research, Boulder, CO, United States, (6)ETH Zurich, Zurich, Switzerland, (7)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (8)University of Washington, School of Oceanography, Seattle, WA, United States
Cara Nissen, Environmental Physics, Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zurich, Switzerland, Meike Vogt, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, Matthias Munnich, ETH Zurich, Environmental Physics, Switzerland and Nicolas Gruber, Center for Climate Systems Modeling, ETH Zurich, Zurich, Switzerland
Charlotte Laufkötter1, John P Dunne2, Stuart M Evans2,3, Paul A Ginoux2, Jasmin G John2, Sergey Malyshev2, Elena Shevliakova4, Alon A Stern5 and Charles A Stock2, (1)Princeton University, Zürich, Switzerland, (2)Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (3)University of Buffalo, Department of Geography, Buffalo, NY, United States, (4)GFDL-Princeton University Cooperative Institute for Climate Science, Princeton, NJ, United States, (5)Princeton University, Princeton, NJ, United States
Judith Hauck, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, Andrew Lenton, CSIRO Hobart, Hobart, TAS, Australia, Clothilde Langlais, CSIRO Marine and Atmospheric Research Hobart, Hobart, Australia and Richard Matear, CSIRO, Oceans & Atmosphere, Hobart, Australia
Andrea Burke1, James William Buchanan Rae1, Joe Stewart2, Laura Robinson3, Jess F Adkins4, Tianyu Chen2, Catherine Sarah Cole5, Eloise Littley5, Dan C Nita5, Ben Taylor1 and Li Tao2,6, (1)University of St Andrews, School of Earth and Environmental Sciences, St Andrews, KY16, United Kingdom, (2)University of Bristol, Bristol, United Kingdom, (3)University of Bristol, Earth Sciences, Bristol, United Kingdom, (4)California Institute of Technology, Pasadena, CA, United States, (5)University of St Andrews, St Andrews, United Kingdom, (6)Nanjing University of Information Science &Technology, Nanjing, China
Xingchen Tony Wang1, Daniel Mikhail Sigman2, Maria Prokopenko3, Jess F Adkins1, Gerald H Haug4, Sophia Hines1, Junyi Chai2, Anja S Studer5, Alfredo Martinez-Garcia5, Tao Li4, Tianyu Chen4 and Gerald H Haug5, (1)California Institute of Technology, Pasadena, CA, United States, (2)Princeton University, Princeton, NJ, United States, (3)Pomona College, Claremont, CA, United States, (4)University of Bristol, Bristol, United Kingdom, (5)Max Planck Institute for Chemistry, Mainz, Germany
Karen Elizabeth Kohfeld, Simon Fraser University, Burnaby, BC, Canada and Zanna Chase, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia