HE24B:
Ice-Ocean Interactions and Circulation Around the Antarctic Margins III Posters
Session ID#: 76647
Session Description:
Processes occurring at or close to the ice-ocean interface around Antarctica influence the state and circulation of a large proportion of the global ocean. The annual cycle of sea ice formation, export and melt is critical to the formation of both Antarctic Bottom Water and Antarctic Intermediate Water, which together fill more than half of the global sub-surface ocean. Inflow of warm Circumpolar Deep Water beneath floating shelves of marine-terminating glaciers promotes retreat of the grounded portion of the ice sheet, and thus sea level rise. Though historically limited by the prohibitive costs of in situ observations and high-resolution models, recent field campaigns and focused model development efforts are now rapidly advancing our understanding of these processes. This session will showcase recent advances in understanding the physical processes occurring in the Antarctic marginal seas, across the Antarctic continental shelf and slope, and within the ocean cavities beneath floating ice shelves. Studies based on observations, numerical models and theory are all welcome. The authors particularly encourage submissions addressing ocean-sea ice interactions, warm water pathways from continental slope to grounding zones, and inter-connectivity between sectors of the Antarctic margins and the broader Southern Ocean.
Co-Sponsor(s):
Primary Chair: Andrew Stewart, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States
Co-chairs: Louise C Biddle, University of Gothenburg, Department of Marine Sciences, Gothenburg, Sweden, Matthew H England, Univ New South Wales, Sydney, NSW, Australia and Andrew F Thompson, California Institute of Technology, Pasadena, United States
Primary Liaison: Andrew Stewart, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States
Moderators: Andrew Stewart, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States and Louise C Biddle, University of Gothenburg, Department of Marine Science, Gothenburg, Sweden
Student Paper Review Liaison: Matthew H England, Univ New South Wales, Sydney, NSW, Australia
Abstracts Submitted to this Session:
Predicting buoyancy stresses and ice shelf calving with viscous and elastic frameworks (657754)
Cyrille Mosbeux1, Till J.W. Wagner2, Maya Karina Karina Becker1 and Helen Amanda Fricker3, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)University of North Carolina at Wilmington, Wilmington, NC, United States, (3)University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Rates and Mechanisms of Turbulent Mixing in a Coastal Embayment of the West Antarctic Peninsula (643233)
Ryan Scott1,2, J. Alexander Brearley2, Alberto Naveira Garabato1, Mark E Inall3, Hugh J Venables2 and Michael Paul Meredith2, (1)University of Southampton, Southampton, United Kingdom, (2)NERC British Antarctic Survey, Cambridge, United Kingdom, (3)Scottish Association for Marine Science, Oban, United Kingdom
Remote control of Filchner-Ronne melt rates by the Antarctic Slope Current. (650728)
Christopher Bull1, Nicolas Jourdain2, Adrian Jenkins1, Irena Vankova3, Pierre Mathiot4, Paul Holland5, Ute Hausmann6 and Jean-baptiste Sallee7, (1)NERC British Antarctic Survey, Cambridge, United Kingdom, (2)CNRS - Université Grenoble Alpes - Institut des Géosciences de l'Environnement, Saint-Martin d’Hères, France, (3)Los Alamos National Laboratory, Los Alamos, NM, United States, (4)Met Office, Exeter, United Kingdom, (5)British Antarctic Survey, Cambridge, United Kingdom, (6)Sorbonne Université, LOCEAN‐IPSL, CNRS/IRD/MNHN, Paris, France, (7)LOCEAN-IPSL, CNRS/IRD/MNHN/Sorbonne Université, Paris, France
Sensitivity of Antarctic Basal Melt Rates to Precipitation (656567)
Alice Barthel1, Milena Veneziani1, Michael S Dinniman2 and Christoph Kittel3, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Old Dominion University, Center for Coastal Physical Oceanography, Norfolk, VA, United States, (3)University of Liège, Liège, Belgium
Temporal variability of Antarctic Bottom Water formation and its drivers (650479)
Alessandro Silvano, University of Tasmania, Quantitative Marine Science Program, Hobart, TAS, Australia, Annie Foppert, Centre for Southern Hemisphere Oceans Research, CSIRO Oceans and Atmosphere, Hobart, Australia, Hobart, TAS, Australia, Stephen R Rintoul, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Environment, Hobart, TAS, Australia, Paul Holland, British Antarctic Survey, Cambridge, United Kingdom, Pasquale Castagno, University of Messina, Naples, Italy, Alberto Naveira Garabato, University of Southampton, Ocean and Earth Science, Southampton, SO14, United Kingdom, Alexander Haumann, Princeton University, Atmospheric and Oceanic Sciences Program, Princeton, NJ, United States, Noriaki Kimura, The University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan, Takeshi Tamura, National Institute of Polar Research, Tokyo, Japan and Alison M Macdonald, WHOI, Woods Hole, United States
The Effect of the Amundsen Sea Freshwater Balance on Ocean Melting of the West Antarctic Ice Sheet (643131)
David Bett1,2, Paul Holland1, Alberto Naveira Garabato3, Adrian Jenkins1, Pierre Dutrieux4 and Satoshi Kimura5, (1)NERC British Antarctic Survey, Cambridge, United Kingdom, (2)British Antarctic Survey, Cambridge, United Kingdom, (3)University of Southampton, Southampton, SO14, United Kingdom, (4)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (5)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
The heat budget of the west Antarctic Peninsula Continental Shelf (647216)
Carlos F Moffat1, Michael S Dinniman2, Xin Wang3, Borja Aguiar-González4, John Michael Klinck II2 and David Sutherland5, (1)University of Delaware, College of Earth, Ocean and Environment, Newark, DE, United States, (2)Old Dominion University, Center for Coastal Physical Oceanography, Norfolk, VA, United States, (3)University of Delaware, Newark, United States, (4)University of Delaware, Newark, DE, United States, (5)University of Oregon, Department of Earth Sciences, Eugene, OR, United States
The role of tides in ocean--ice-shelf interactions in the southwestern Weddell Sea (655996)
Ute Hausmann1, Jean-baptiste Sallee2, Nicolas Jourdain3, Pierre Mathiot4, Clement Rousset5, Gurvan Madec2, Julie Deshayes6 and Tore Hattermann7, (1)Sorbonne Université, LOCEAN-IPSL, Paris, France, (2)LOCEAN-IPSL, CNRS/IRD/MNHN/Sorbonne Université, Paris, France, (3)CNRS - Université Grenoble Alpes - Institut des Géosciences de l'Environnement, Saint-Martin d’Hères, France, (4)Met Office, Exeter, United Kingdom, (5)LOCEAN-CNRS, Universite Pierre et Marie Curie, Paris, France, (6)LOCEAN, Paris Cedex 05, France, (7)Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
The sensitivity of ice-shelf ocean boundary layer dynamics and ice-shelf melting to local conditions (643190)
Carolyn Branecky Begeman, Los Alamos National Laboratory, Los Alamos, NM, United States, Xylar Asay-Davis, Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics Group, Los Alamos, NM, United States and Luke Van Roekel, Los Alamos National Laboratory, Los Alamos, United States
The Sensitivity of Sea Ice and Ocean to the Representation of Antarctic Mass Loss in a Climate Model (648383)
Shona Mackie1, Inga Smith1, David P Stevens2, Jeff K Ridley3 and Pat Langhorne1, (1)University of Otago, Dunedin, New Zealand, (2)University of East Anglia, Norwich, United Kingdom, (3)Met Office, Hadley Centre for Climate Prediction and Research, Exeter, United Kingdom
Toward dynamic ice sheet-ocean coupling in the Energy Exascale Earth System Model (E3SM) (652177)
Xylar Asay-Davis1, Darin Scott Comeau2, Darren Engwirda3, Matthew J Hoffman4, Mark R Petersen2, Stephen F Price2, Phillip J. Wolfram Jr2 and Jonathan D Wolfe5, (1)Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics Group, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Los Alamos, NM, United States, (3)Los Alamos National Laboratory, New York City, United States, (4)Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics, Los Alamos, NM, United States, (5)Los Alamos National Laboratory, Los Alamos, United States
Towards Development of the High Precision Supercooling Measurement Instrument (“HiPSMI”) for Supercooling Measurements Under Ice Shelves (648698)
Inga Smith1, Peter Russell2, Maren E. Richter1, Britney E Schmidt3, Lars Henrik Smedsrud4, Greg H Leonard5, Justin Lawrence6, Ben Hurwitz7, Jonathan R. Everts1 and Matthew Ryan Meister8, (1)University of Otago, Department of Physics, Dunedin, New Zealand, (2)University of Otago, Dunedin, New Zealand, (3)Cornell University, Ithaca, NY, United States, (4)Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research, Bergen, Norway, (5)University of Otago, School of Surveying, Dunedin, New Zealand, (6)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (7)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States, (8)Cornell University, Astronomy, Ithaca, United States
Variability and dynamics of along-shelf exchange in the west Antarctic Peninsula (wAP) (650754)
Xin Wang1, Carlos F Moffat2, Borja Aguiar-González3, Michael S Dinniman4, John Michael Klinck II4 and David Sutherland5, (1)University of Delaware, Newark, United States, (2)University of Delaware, College of Earth, Ocean and Environment, Newark, DE, United States, (3)University of Delaware, Newark, DE, United States, (4)Old Dominion University, Center for Coastal Physical Oceanography, Norfolk, VA, United States, (5)University of Oregon, Department of Earth Sciences, Eugene, OR, United States
Winter Distribution of Meltwater in Front of Pine Island Ice Shelf Revealed by Seals (650342)
Yixi Zheng1, Karen J. Heywood2, Benjamin Webber1, David P Stevens1, Louise C Biddle3, Anna Wahlin3, Lars Boehme4 and Michael A Fedak5, (1)University of East Anglia, Norwich, United Kingdom, (2)University of East Anglia, Centre for Ocean and Atmospheric Sciences, School of Environmental Science, Norwich, United Kingdom, (3)University of Gothenburg, Department of Marine Sciences, Gothenburg, Sweden, (4)Scottish Oceans Institute, Sea Mammal Research Unit, St. Andrews, United Kingdom, (5)University of St Andrews, SMRU Instrumentation, Scottish Oceans Institute, St Andrews, United Kingdom
