HE31B:
Variability of High-Latitude Ocean/Sea Ice/Atmosphere Interactions and Associated Convection in a Changing Climate I

Session ID#: 92385

Session Description:
Exchanges of heat, mass, and momentum across the air-sea interface impact the ocean and atmosphere and their interactions within the coupled climate system. In polar regions, these exchanges are significantly enhanced due to large air-sea temperature differences and high wind speeds, and are modulated by sea-ice. Such exchanges contribute in particular to water mass formation and deep convection that in turn impact physical and biogeochemical conditions throughout the world oceans. Because high latitude air-sea-ice interactions involve a complex interplay of processes at the interface between ocean, sea-ice, and atmosphere, many questions remain on the drivers of their temporal and spatial= variability. As more observations of high latitude regions are now available and resolution of numerical models is refined, progress can be made towards a better understanding of air-sea-ice interaction processes, their variability and impacts. In this session, we invite contributions that report on recent progress towards investigating high latitude air-sea-ice interface processes and their impacts on the local ocean, atmosphere, and sea-ice, as well as the larger coupled climate system, using observations, models or both. Contributions that address coastal or open-ocean deep convection in the Southern Ocean, subpolar North Atlantic, and Arctic are particularly welcome. We also invite studies that examine the impact of convection on the uptake of biogeochemical tracers.
Co-Sponsor(s):
  • AI - Air-Sea Interactions
  • PC - Past, Present and Future Climate
  • PL - Physical Oceanography: Mesoscale and Larger
Index Terms:
Primary Chair:  Milena Veneziani, Los Alamos National Laboratory, Los Alamos, NM, United States
Co-chairs:  Carolina O. Dufour, Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, Canada, Kent Moore, Univ Toronto, Toronto, ON, Canada and Kjetil Våge, University of Bergen, Bergen, Norway
Primary Liaison:  Milena Veneziani, Los Alamos National Laboratory, Los Alamos, NM, United States
Moderators:  Milena Veneziani, Los Alamos National Laboratory, Los Alamos, NM, United States and Carolina O. Dufour, Princeton University, Program in Atmospheric and Oceanic Sciences, Princeton, United States
Student Paper Review Liaisons:  Carolina O. Dufour, Princeton University, Program in Atmospheric and Oceanic Sciences, Princeton, United States and Milena Veneziani, Los Alamos National Laboratory, Los Alamos, NM, United States

Abstracts Submitted to this Session:

Changes in Overturning Circulation under Arctic Sea Ice Retreat in EC-Earth (650142)
Anais Bretones, Department of Earth Science, University of Bergen and the Bjerknes Centre for Climate, Bergen, Norway, Kerim Hestnes Nisancioglu, University of Bergen and the Bjerknes Centre for Climate Research, Bergen, Norway, Mari Fjalstad Jensen, University of Bergen, Bergen, Norway and Mehmet Ilicak, GFDL, Princeton, NJ, United States
Near-term and Large-scale Coupled Climate System Responses to Arctic Sea-ice Loss (649911)
Amelie Simon, LOCEAN-IPSL, Paris, France, Guillaume Gastineau, LOCEAN-IPSL, Paris cedex 05, France, Claude Frankignoul, Sorbonnes Universités LOCEAN, Paris, France and Francis Codron, Univ Pierre and Marie Curie-Paris 6, LOCEAN, Paris, France
Role of atmospheric feedbacks in the ocean’s response to enhanced Greenland Ice Sheet–melting (645616)
Torge Martin, Jan Harlass, Arne Biastoch and Katja Bettina Matthes, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Ensemble Global Warming Simulations with Idealized Antarctic Meltwater Input (642344)
Mojib Latif and Wonsun Park, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Decadal sea-ice variability over the Weddell Sea in a coupled GCM (657583)
Yushi Morioka1, Liping Zhang2, Thomas L Delworth3 and Swadhin K Behera1, (1)JAMSTEC/APL, Yokohama, Japan, (2)NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (3)NOAA/GFDL, Princeton, NJ, United States
On the role of the Antarctic Slope Front on the occurrence of the Weddell Sea polynya under climate change (642106)
Joseph Lockwood1,2, Carolina O. Dufour3, Stephen Griffies4 and Michael Winton4, (1)United States, (2)McGill University, Atmospheric and Oceanic Science, Montreal, QC, Canada, (3)Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, Canada, (4)Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States
High latitude controls on ocean heat uptake efficiency (647827)
Emily Rose Newsom, University of Oxford, Department of Physics, Oxford, United Kingdom, Laure Zanna, University of Oxford, Dept. of Physics, Oxford, United Kingdom and Samar Khatiwala, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Pathways and time scales of ocean heat uptake and high-latitude ventilation (652635)
Alice Marzocchi, A. J. George Nurser, Louis Clement and Elaine McDonagh, National Oceanography Centre, Southampton, United Kingdom