PC14C:
Physical and Biogeochemical Processes in the Southern Ocean: Observations, State Estimation, and Modeling IV Posters


Session ID#: 11546

Session Description:
The Southern Ocean, south of 30°S, occupies just under one-third of the surface ocean area, yet it accounts for a disproportionate share of the vertical exchange of heat, carbon and nutrients between the deep ocean, the surface ocean and the atmosphere. Understanding the physical and biogeochemical processes that determine the Southern Ocean’s mean state, variability, and response to external forcing is critical to our understanding of the climate system as a whole, and for reducing uncertainties in climate projections. Recent advances in data collection, state estimation and modeling capabilities have finally established the necessary infrastructure to permit a deeper understanding of the Southern Ocean’s processes that are relevant to climate. Working toward this goal, this session will present new results based on modeling and/or observational efforts that investigate biogeochemical processes, large-scale and mesoscale circulation, mixing, as well as ocean-atmosphere and ocean-ice interactions.
Primary Chair:  Igor V Kamenkovich, RSMAS, Miami, FL, United States
Chairs:  Joellen L Russell, University of Arizona, Tucson, AZ, United States, Stephen Riser, University of Washington, School of Oceanography, Seattle, WA, United States, Ariane Verdy, Scripps Institution of Oceanography, UC San Diego, La Jolla, CA, United States, Anna Cabre, Instituto de Ciencias del Mar, Barcelona, Spain, Kyle Armour, Massachusetts Institute of Technology, Cambridge, MA, United States, Torge Martin, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany and Irina Marinov, University of Pennsylvania, Department of Earth and Environmental Sciences, Philadelphia, PA, United States
Moderators:  Joellen L Russell, University of Arizona, Tucson, AZ, United States and Igor V Kamenkovich, RSMAS, Miami, FL, United States
Student Paper Review Liaison:  Stephen Riser, University of Washington, School of Oceanography, Seattle, WA, United States
Index Terms:

1635 Oceans [GLOBAL CHANGE]
4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4532 General circulation [OCEANOGRAPHY: PHYSICAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Co-Sponsor(s):
  • B - Biogeochemistry and Nutrients
  • OD - Ocean Observing and Data Management
  • PO - Physical Oceanography/Ocean Circulation

Abstracts Submitted to this Session:

 
Anthropogenic Carbon Uptake in the Southern Ocean: Investigating the Spread Across Climate Models (Invited) (88251)
Carolina O. Dufour1, Gregory F. de Souza2, Ivy Frenger1, Adele K Morrison3 and Jorge L Sarmiento1, (1)Princeton University, Program in Atmospheric and Oceanic Sciences, Princeton, NJ, United States, (2)ETH Zurich, Institute of Geochemistry and Petrology, Zurich, Switzerland, (3)Australian National University, Research School of Earth Sciences, Canberra, Australia
 
A Regional Southern Ocean Carbon Budget (90453)
Isabella Rosso1, Ariane Verdy2, Matthew R Mazloff1 and Lynne D Talley3, (1)UC San Diego, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, UC San Diego, La Jolla, CA, United States, (3)University of California San Diego, La Jolla, CA, United States
 
Recent changes in the CO2 sink of the Southern Ocean inferred from ocean state estiamates (91500)
Manfredi Manizza, Univ of California--SIO, Geosciences Research Division, La Jolla, CA, United States, Cynthia D Nevison, INSTAAR/University of Colorado, Boulder, CO, United States, Mati Kahru, Univ of California--SIO, La Jolla, CA, United States, Dimitris Menemenlis, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Ralph F Keeling, University of California-San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Brian Greg Mitchell, Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States
 
Effects of Southern Hemispheric Wind Changes on Global Oxygen and the Pacific Oxygen Minimum Zone (91029)
Julia Getzlaff1, Heiner Dietze1 and Andreas Oschlies2, (1)GEOMAR, Helmholtz Centre for Ocean Research, Kiel, Germany, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
 
Under-ice oxygen observations by profiling floats in the Southern Ocean (93183)
Robert Drucker, University of Washington Seattle Campus, Seattle, WA, United States and Stephen Riser, University of Washington, School of Oceanography, Seattle, WA, United States
 
Observing the Southern Ocean circulation in sea ice regions with profiling floats: position uncertainties and correlation statistics (90336)
Paul Chamberlain1, Lynne D Talley1, Matthew R Mazloff2, Alison R Gray3 and Stephen Riser3, (1)University of California San Diego, La Jolla, CA, United States, (2)UC San Diego, La Jolla, CA, United States, (3)University of Washington, School of Oceanography, Seattle, WA, United States
 
Mapping Error in Southern Ocean Transport Computed from Satellite Altimetry and Argo (87650)
Michael Kosempa, USF, St Petersburg, FL, United States and Don P Chambers, University of South Florida Tampa, College of Marine Science, Tampa, FL, United States
 
Transport Pathways and Residence Times of Biological Hot Spots Along the Shelf North of the South Shetland Islands and Bransfield Strait (90234)
Maria Andrea Pinones1,2 and Marcel Ramos2,3, (1)Yale University, New Haven, CT, United States, (2)Centro de Estudios Avanzados en Zonas Aridas - CEAZA, Coquimbo, Chile, (3)Universidad Catolica del Norte, Coquimbo, Chile
 
Observed Temporal and Spatial Variability in the Marine Environment at the Sub-Antarctic Prince Edward Islands – Evidence of a Changing Climate? (87963)
Sarah Asdar1,2, Julie Deshayes3 and Isabelle Jane Ansorge1, (1)university of Cape Town, Department of Oceanography, Cape Town, South Africa, (2)Universite de Bretagne Occidentale, Laboratoire de Physique des Oceans, Brest, France, (3)Universite Pierre et Marie Curie, LOCEAN, Paris, France