AI24A:
Southern Ocean Air-Sea Exchange and Mixed-Layer Processes II Posters


Session ID#: 29747

Session Description:
The Southern Ocean exchanges freshwater, momentum, heat, carbon and other biogeochemical species between the high-latitude ocean and atmosphere. These air-sea fluxes play important roles in the Earth’s climate system. Many observational and modeling efforts seek to quantify these fluxes and their dependencies. Uncertainties in Southern Ocean air-sea exchange remain high and limit our ability to validate climate models. Circumpolar transport, exchange along the continental margins, and meso-scale variability modify mixed-layer budgets, air-sea fluxes, and freshwater transport. Antarctic scientific stations facilitate long oceanic time series while autonomous platforms increase the geographic density of in situ observations. Models and satellite observations extend and connect observations to reveal underlying dynamics. Developments in observing approaches, data interpretation and numerical simulations offer new possibilities for advancing understanding in ways not previously possible.

This session invites contributions that address surface flux estimates and mixed-layer processes in the Southern Ocean. Contributions addressing observing challenges, defining flux requirements, and/or presenting methodologies are welcome. We seek to bring together observers, modelers, and theorists.

Primary Chair:  Martin Smith Hoecker-Martinez, University of Michigan Ann Arbor, Climate and Space Sciences, Ann Arbor, MI, United States; University of Redlands, Physics, Redlands, CA, United States
Co-chairs:  Sarah T Gille, UCSD, La Jolla, CA, United States, Daniel B Whitt, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States and Sebastiaan Swart, University of Gothenburg, Department of Marine Sciences, Gothenburg, Sweden
Moderators:  Daniel B Whitt, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, Sebastiaan Swart, University of Gothenburg, Department of Marine Sciences, Gothenburg, Sweden, Martin Smith Hoecker-Martinez, University of Michigan Ann Arbor, Climate and Space Sciences, Ann Arbor, MI, United States and Sarah T Gille, Scripps Institution of Oceanography, UC San Diego, La Jolla, CA, United States
Student Paper Review Liaisons:  Martin Smith Hoecker-Martinez, University of Michigan Ann Arbor, Climate and Space Sciences, Ann Arbor, MI, United States and Sarah T Gille, Scripps Institution of Oceanography, UC San Diego, La Jolla, CA, United States
Index Terms:

4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4504 Air/sea interactions [OCEANOGRAPHY: PHYSICAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • BN - Biogeochemistry and Nutrients
  • CT - Chemical Tracers, Organic Matter and Trace Elements
  • HE - High Latitude Environments

Abstracts Submitted to this Session:

The Importance of Zonal Structure in Southern Ocean Surface Forcing (Invited) (307389)
Emily Rose Newsom, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States
Constraining the balance of Southern Ocean surface freshwater fluxes using oxygen isotope data (314404)
Katherine Leonard1,2, Alexander Haumann3, Michael Paul Meredith4, Jennifer Hutchings5, Maria Tsukernik6, Irina Gorodetskaya7, Melanie J Leng8, Gereon Budeus9, Sharon Elisabeth Stammerjohn10, Elisabeth Schlosser11 and Yvonne Weber1, (1)Swiss Federal Institute of Technology Lausanne, CRYOS, Lausanne, Switzerland, (2)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (3)Center for Climate Systems Modeling, ETH Zurich, Zurich, Switzerland, (4)British Antarctic Survey, Cambridge, United Kingdom, (5)Oregon State University, Corvallis, OR, United States, (6)Brown University, Providence, RI, United States, (7)University of Aveiro, Aveiro, Portugal, (8)British Geological Survey, NERC Isotope Geoscience Facilities, Nottingham, United Kingdom, (9)Bremenhaven, Germany, (10)University of Colorado Boulder, Boulder, CO, United States, (11)Institute of Atmospheric and Cryospheric Sciences, University of Innsbruck, Innsbruck, Austria
Water-mass transformation by sea-ice component of ACME climate simulations over the Southern Ocean (321802)
Hyein Jeong1, Adrian K Turner2 and Todd Darwin Ringler2, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, T-3, Los Alamos, NM, United States
Variability of Volume and Salt Transports in the Southern Ocean (306471)
Brady S Ferster and Subrahmanyam Bulusu, University of South Carolina Columbia, Columbia, SC, United States
Surface cooling and subsurface warming in the Southern Ocean: Using the annual cycle of air-sea flux to explore processes (319618)
Sarah T Gille, UCSD, La Jolla, CA, United States
Air-Sea Flux Variability in the Southern Ocean as Represented by Buoys, Icebreaker, and Gridded Flux Products (325347)
Lisan Yu, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Xiangze Jin, Woods Hole Oceanographic INST, Woods Hole, MA, United States and Eric Werner Schulz, Bureau of Meteorology, Melbourne, Australia
Cooling and freshening of Southeast Pacific in years 2005 – 2010 (312017)
Ivana Cerovecki, UC San Diego, La Jolla, CA, United States, Andrew Meijers, NERC British Antarctic Survey, Cambridge, United Kingdom, Matthew R Mazloff, SIO, La Jolla, CA, United States, Sarah T Gille, Scripps Institution of Oceanography, La Jolla, CA, United States and Veronica Tamsitt, Scripps Institute of Oceanography, La Jolla, CA, United States
Salinity response to atmospheric forcing of the Terra Nova Bay polynya, Antarctica (321046)
Deborah A Le Bel1, Christopher J Zappa1, Giorgio Budillon2 and Arnold L Gordon3, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)Parthenope University of Naples, Naples, Italy, (3)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Modeling Study of Southern Ocean Mixed Layer Depth Variations and Their Influences on the Primary Production, Carbon Export and Phenology (322703)
Meibing Jin, University of Alaska Fairbanks, Fairbanks, AK, United States, Yun Li, University of South Florida, College of Marine Science, St. Petersburg, FL, United States and Rubao Ji, Woods Hole Oceanographic Inst., Woods Hole, MA, United States
Characterization of and controls on phytoplankton productivity along the Western Antarctic Peninsula (325478)
Hannah Joy-Warren1, Gert van Dijken1, Katelyn Lewis1, Anne-Carlijn Alderkamp2, Virginia Selz1 and Kevin R Arrigo1, (1)Stanford University, Earth System Science, Stanford, CA, United States, (2)Foothill College, Department of Biology, Los Altos Hills, CA, United States
The Role of Surface Forcing and Submesoscale Processes on Southern Ocean Stratification (317755)
Sebastiaan Swart, University of Gothenburg, Department of Marine Sciences, Gothenburg, Sweden, Marcel du Plessis, University of Cape Town, Department of Oceanography, Cape Town, South Africa, Sandy Jane Thomalla, CSIR, Southern Ocean Carbon and Climate Observatory, South Africa, Pedro M. S. Monteiro, CSIR, Cape Town, South Africa and Kevin Schmidt, University of Cape Town, Department of Oceanography, South Africa
Similarity Theory and Mixing in the Surface Layer of Large Eddy Simulations of the Wind, Wave and Buoyancy Forced Southern Ocean (323306)
William Large, NCAR, Boulder, CO, United States, Alice K DuVivier, National Center for Atmospheric Research, Boulder, CO, United States, Peter P Sullivan, National Center for Atmospheric Research, Mesoscale Microscale Meteorology, Boulder, CO, United States, Edward G Patton, National Center for Atmospheric Research, Mesoscale & Microscale Meteorology, Boulder, CO, United States and Leonel Romero, University of California Santa Barbara, Earth Research Institute, Santa Barbara, CA, United States
When Mixed Layers are Not Mixed. Storm-driven Mixing and Bio-optical Vertical Gradients in Mixed Layers of the Southern Ocean. (324662)
Magdalena M Carranza1, Sarah T Gille1, Peter J. S. Franks1, Kenneth S Johnson2, Robert Pinkel3 and James B Girton4, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States, (3)Univ California San Diego, La Jolla, CA, United States, (4)University of Washington, Applied Physics Laboratory, Seattle, WA, United States
Physical processes driving persistently shallow mixed layers in the southern Scotia Sea (321753)
Channing Prend1, Sarah T Gille1, Matthew R Mazloff2 and Andrew Lucas1, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)SIO, La Jolla, CA, United States
Deep Winter Mixed Layers in the Southern Ocean – Impact of Ocean Resolution on Model Bias and Role of the Flow Field and Air-Sea Buoyancy Loss (326236)
Justin Small1, Alice K DuVivier1, Daniel B Whitt2, Matthew C Long3, Ian Grooms4 and William Large3, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, (3)NCAR, Boulder, CO, United States, (4)University of Colorado Boulder, Applied Mathematics, Boulder, CO, UNITED STATES
The impact of severe storm conditions on the winter marginal ice zone in the Southern Ocean (310393)
Marcello Vichi1, Sebastian Skatulla2, Keith MacHutchon2, Ehlke de Jong3, Clare Eayrs4, Jhon Mojica4, David Holland5, Alessandro Toffoli6, Miguel Onorato7, Alberto Alberello6, Clinton Saunders8, Anriette Bekker9 and Warren Joubert10, (1)University of Cape Town, Department of Oceanography and Marine Research Institute, Cape Town, South Africa, (2)University of Cape Town, Department of Civil Engineering and Marine Research Institute, Cape Town, South Africa, (3)University of Cape Town, Department of Oceanography, Cape Town, South Africa, (4)New York University Abu Dhabi, Centre for Global Sea Level Change, Abu Dhabi, United Arab Emirates, (5)New York University, Courant Institute of Mathematical Sciences, New York, NY, United States, (6)University of Melbourne, Department of Infrastructure Engineering, Parkville, Australia, (7)University of Turin, Department of Physics, Turin, Italy, (8)Stellenbosch University, Sound and Vibration Research Group, Department of Mechanical and Mechatronic Engineering, South Africa, (9)Stellenbosch University, Sound and Vibration Research Group, Department of Mechanical and Mechatronic Engineering, Stellenbosch, South Africa, (10)South African Weather Service, Cape Town, South Africa
Extreme heat flux events and their impact on Subantarctic Mode Water formation revealed by the Southern Ocean OOI mooring (315663)
Sarah Ogle1, Veronica Tamsitt2, Sarah T Gille3, Simon A Josey4, Ivana Cerovecki2 and Lynne D Talley3, (1)Scripps Institution of Oceanography, Center for Western Weather and Water Extremes (CW3E), La Jolla, CA, United States, (2)Scripps Institute of Oceanography, La Jolla, CA, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States, (4)National Oceanography Center, Southampton, United Kingdom
Scaling the Bubble Penetration Depth in the Open Ocean during the Southern Ocean Gas Exchange Experiment 2008 (326266)
Alejandro Cifuentes-Lorenzen, University of Connecticut, Marine Sciences, Groton, CT, United States, Christopher J Zappa, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Kaylan L Randolph, University of Connecticut, Groton, CT, United States and James B Edson, Univ Connecticut, Groton, CT, United States

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