HE42A:
Ice-Ocean Interactions and Circulation Around the Antarctic Margins III


Session ID#: 37087

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.
Primary Chair:  Andrew Stewart, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States
Co-chairs:  Andrew F Thompson, California Institute of Technology, Pasadena, CA, United States, Louise C Biddle, University of Gothenburg, Gothenburg, Sweden and Matthew H England, University of New South Wales, Climate Change Research Centre, Sydney, NSW, Australia
Moderators:  Matthew H England, University of New South Wales, Climate Change Research Centre, Sydney, NSW, Australia, Andrew Stewart, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Louise C Biddle, University of Gothenburg, Gothenburg, Sweden and Andrew F Thompson, California Institute of Technology, Pasadena, CA, United States
Student Paper Review Liaison:  Andrew Stewart, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States
Index Terms:

4203 Analytical modeling and laboratory experiments [OCEANOGRAPHY: GENERAL]
4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4255 Numerical modeling [OCEANOGRAPHY: GENERAL]
4262 Ocean observing systems [OCEANOGRAPHY: GENERAL]
Cross-Topics:
  • IS - Ocean Observatories, Instrumentation and Sensing Technologies
  • OM - Ocean Modeling
  • PL - Physical Oceanography: Mesoscale and Larger
  • PS - Physical Oceanography: Mesoscale and Smaller

Abstracts Submitted to this Session:

On the Modified Warm Deep Water Flow toward the Filchner Ronne Ice Shelf: Observations and Model Results (318305)
Svenja Ryan1, Ralph Timmermann1, Michael Schröder1, Tore Hattermann1,2 and Torsten Kanzow1, (1)Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, (2)Akvaplan-niva AS, High North Research Centre, Tromso, Norway

See more of: High Latitude Environments