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:

1627 Coupled models of the climate system [GLOBAL CHANGE]
4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4215 Climate and interannual variability [OCEANOGRAPHY: GENERAL]
4504 Air/sea interactions [OCEANOGRAPHY: PHYSICAL]
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, McGill University, Department of Atmospheric and Oceanic Sciences, Montréal, QC, Canada
Student Paper Review Liaisons:  Carolina O. Dufour, McGill University, Department of Atmospheric and Oceanic Sciences, Montréal, QC, Canada and Milena Veneziani, Los Alamos National Laboratory, Los Alamos, NM, United States

Abstracts Submitted to this Session:

HE31B-01
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
HE31B-02
Near-term and Large-scale Coupled Climate System Responses to Arctic Sea-ice Loss (649911)
Amelie Simon1, Guillaume Gastineau1, Claude Frankignoul2 and Francis Codron3, (1)LOCEAN-IPSL, Paris, France, (2)Sorbonnes Universités LOCEAN, Paris, France, (3)Univ Pierre and Marie Curie-Paris, Laboratoire d'Océanographie et du Climat, Paris, France
HE31B-03
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
HE31B-04
Ensemble Global Warming Simulations with Idealized Antarctic Meltwater Input (642344)
Mojib Latif and Wonsun Park, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
HE31B-05
Decadal sea-ice variability over the Weddell Sea in a coupled GCM (657583)
Yushi Morioka1, Liping Zhang2, Thomas L Delworth2 and Swadhin K Behera1, (1)JAMSTEC/APL, Yokohama, Japan, (2)NOAA/GFDL, Princeton, United States
HE31B-06
On the role of the Antarctic Slope Front on the occurrence of the Weddell Sea polynya under climate change (642106)
Joseph Lockwood, Columbia University of New York, New York, United States; McGill University, Atmospheric and Oceanic Science, Montreal, QC, Canada, Carolina O. Dufour, Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, Canada, Stephen Griffies, Geophysical Fluid Dynamics Laboratory, Princeton, United States and Michael Winton, Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States
HE31B-07
High latitude controls on ocean heat uptake efficiency (647827)
Emily Rose Newsom, New York University, Courant Institute of Mathematics, New York, NY, United States, Laure Zanna, University of Oxford, Dept. of Physics, Oxford, United Kingdom and Samar Khatiwala, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
HE31B-08
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
See more of: High Latitude Environments