HE34D:
Ice-Ocean Interactions and Circulation Around the Antarctic Margins IV Posters

Session ID#: 92349

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):
  • OM - Ocean Modeling
  • PL - Physical Oceanography: Mesoscale and Larger
  • PS - Physical Oceanography: Mesoscale and Smaller
Index Terms:

4255 Numerical modeling [OCEANOGRAPHY: GENERAL]
4262 Ocean observing systems [OCEANOGRAPHY: GENERAL]
4540 Ice mechanics and air/sea/ice exchange processes [OCEANOGRAPHY: PHYSICAL]
9310 Antarctica [GEOGRAPHIC LOCATION]
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, 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:  Matthew H England, Univ New South Wales, Sydney, Australia and Andrew F Thompson, California Institute of Technology, Pasadena, United States
Student Paper Review Liaison:  Andrew F Thompson, California Institute of Technology, Pasadena, United States

Abstracts Submitted to this Session:

 
Antarctic Bottom Water outflow from the western Ross Sea: preliminary results from the Ross Sea Outflow Experiment (650270)
Melissa Bowen, University of Auckland, School of Environment, Auckland, New Zealand, Denise Fernandez, National Institute of Water and Atmospheric Research, Wellington, New Zealand and Aitana Forcen-Vazquez, MetOcean, Raglan, New Zealand
 
Antarctic Glacial Melt as a Driver of Recent Southern Ocean Climate Trends (649473)
Craig Daniel Rye1, John C Marshall2, Maxwell Kelley3, Gary L Russell3, Larissa Nazarenko4, Gavin A Schmidt5 and James E Hansen6, (1)NASA Goddard Institute for Space Studies, New York, NY, United States, (2)MIT, Cambridge, MA, United States, (3)NASA Goddard Institute for Space Studies, New York City, NY, United States, (4)NASA Goddard Institute for Space Studies, New York, United States, (5)NASA/GISS, New York, United States, (6)NASA GISS/Columbia University, New York, NY, United States
 
Automated Weddell Sea iceberg tracking with a machine learning approach applied to SAR imagery (640369)
Mauro Barbat1, Thomas Rackow2, Christine Wesche2, Hartmut H Hellmer3 and Mauricio M Mata4, (1)Federal University of Rio Grande-FURG, Institute of Oceanography, Rio Grande, Brazil, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (3)Alfred Wegener Institute, Bremerhaven, Germany, (4)Federal University of Rio Grande, Instituto de Oceanografia, Rio Grande, Brazil
 
Direct Numerical Simulations of freezing under a sloping ice-face. (639123)
Mainak Mondal, IMAS, UTAS, Hobart, TAS, Australia, Benjamin Keith Galton-Fenzi, Australian Antarctic Division, Hobart, TAS, Australia, Petra Heil, Univ Tasmania, Hobart, TAS, Australia and Bishakhdatta Gayen, University of Melbourne, Mechanical Engineering, Melbourne, Australia
 
Direct numerical simulations of ice melting in a turbulent ocean (640234)
Louis-Alexandre Couston, NERC British Antarctic Survey, Cambridge, United Kingdom
 
Historical Variability of Circumpolar Deep Water in the Bellingshausen Sea, Antarctica (653794)
Christina LoBuglio1, Lena M. Schulze Chretien1, Andrew F Thompson2 and Kevin Speer3, (1)Jacksonville University, Marine Science Research Institute, Jacksonville, FL, United States, (2)California Institute of Technology, Pasadena, United States, (3)Florida State University, Geophysical Fluid Dynamics Institute(GFDI), Department of Scientific Computing(DSC), Tallahassee, United States
 
In search of the perfect wave: Variability of marine-terminating glacier response along the Wilkes Land Coast to diverse oceanographic conditions (654062)
Catherine C Walker, Woods Hole Oceanographic Institution, Applied Ocean Physics and Engineering, Woods Hole, MA, United States and Alex S Gardner, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
 
Influence of Antarctic Slope Current variability on modified Circumpolar Deep Water Intrusions in Prydz Bay, East Antarctica (652942)
Ruibin Xia, Nanjing University of Information Science & Technology, Nanjing, China, Zhaomin Wang, Hohai University, College of Oceanography, Nanjing, China, Andrew Stewart, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States, Chengyan Liu, Nanjing University of Information Science and Technology, Nanjing, China and Chen Cheng, Nanjing University of Information Science & Technology, School of Marine Sciences, Nanjing, China
 
Localized Basal Melting Near the Ross Ice Shelf Front: Interplay of Bathymetry, Ocean Heat Fluxes, and Ice Damage History (657419)
David Felton Porter1, Kirsty J Tinto1, Robin Elizabeth Bell2, Scott R Springer3, Laurence Padman4, Helen Amanda Fricker5, Cyrille Mosbeux6 and Indrani Das2, (1)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (2)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (3)Earth & Space Research, Seattle, WA, United States, (4)Earth & Space Research, Corvallis, OR, United States, (5)University of California, San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (6)LGGE Laboratoire de Glaciologie et Géophysique de l’Environnement, Saint Martin d'Hères, France
 
Melting and Freezing Beneath Larsen C Ice Shelf (642925)
Lianne Harrison1,2, Paul Holland1, Karen J. Heywood3 and Keith W Nicholls1, (1)British Antarctic Survey, Cambridge, United Kingdom, (2)University of East Anglia, Norwich, NR4, United Kingdom, (3)University of East Anglia, Norwich, United Kingdom
 
Modeling Circumpolar Deep Water intrusion onto the Bellingshausen Sea continental shelf (645171)
Shuntaro Hyogo, Graduate School of Environmental Sciences, Hokkaido University, Sapporo, Japan and Yoshihiro Nakayama, Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
 
Modeling the Vertical Structure of Ice Shelf-Ocean Boundary Current under Supercooled Condition with Suspended Frazil Ice Processes (636386)
Chen Cheng, Nanjing University of Information Science & Technology, School of Marine Sciences, Nanjing, China, Adrian Jenkins, NERC British Antarctic Survey, Cambridge, United Kingdom, Zhaomin Wang, Hohai University, Nanjing, China and Chengyan Liu, Nanjing University of Information Science and Technology, Nanjing, China
 
Modelling an Ice-Shelf—Ocean Boundary Layer with a General Circulation Model (650576)
Ryan Patmore1, Paul Holland1 and Catherine Ann Vreugdenhil2, (1)British Antarctic Survey, Cambridge, United Kingdom, (2)University of Cambridge, Cambridge, United Kingdom
 
Next Generation Estimates of Antarctic Ice Shelf Melt Rates (657903)
Fernando Paolo1, Johan Nilsson1 and Alex S Gardner2, (1)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
 
Observations of sub-monthly melt rate variability at the Filchner-Ronne Ice Shelf (640701)
Irena Vankova, Los Alamos National Laboratory, Los Alamos, United States and Keith W Nicholls, British Antarctic Survey, Cambridge, United Kingdom
 
Ocean-driven glacial melt estimation time series using salinity and oxygen isotopes in Pine Island Bay, West Antarctica (655649)
Andrew Nicholas Hennig, David Mucciarone and Robert B Dunbar, Stanford University, Stanford, CA, United States
 
Onset and Energetics of Double-Diffusive Convection in the Ice Shelf/Ocean Boundary Layer (646663)
Leo Middleton1, Catherine Ann Vreugdenhil1, Paul Holland2 and John Ryan Taylor3, (1)University of Cambridge, Cambridge, United Kingdom, (2)British Antarctic Survey, Cambridge, United Kingdom, (3)University of Cambridge, DAMTP, Cambridge, United Kingdom