HE13A:
Dynamics of the Arctic Ocean and Sea Ice System in a Changing Climate II


Session ID#: 11356

Session Description:
Major sea ice loss and Arctic air temperatures rising faster than the global mean are precursors of significant change that the Arctic Ocean is already beginning to experience. The retreat of sea ice greatly affects the Arctic system, allowing the direct exchange of heat, momentum and fresh water between ocean and atmosphere with implications for the ecosystem as well. Recently, novel and innovative year-round observational programs provide insight on this transition, however a correct interpretation of the changes inevitably requires an improved understanding of the actual processes at play. In the context of a changing Arctic, this session invites observational and modeling studies describing and quantifying dynamical processes, feedbacks and the role of fluxes across the air-ice-ocean interface. Particular attention will be paid to topics such as momentum transfer into the ocean, the transfer of energy across scales, connections between the surface and the deep ocean (e.g. internal waves and mixing), and links to changes in stratification and large-scale circulation. Submissions on both physical and multi-disciplinary aspects are welcome.
Primary Chair:  Torge Martin, GEOMAR Helmholtz Centre for Ocean Research Kiel, Ocean Circulation and Climate Dynamics, Kiel, Germany
Chairs:  Mary-Louise Timmermans, Yale University, Geology and Geophysics, New Haven, CT, United States, Richard Arthur Allard, Naval Research Lab Stennis Space Center, Stennis Space Center, MS, United States, Jeff R Carpenter, Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, Geesthacht, Germany, Kim I Martini, Sea-Bird Scientific, Bellevue, WA, United States and Gregory C Smith, Environment Canada, Meteorological Research Division, Quebec, QC, Canada
Moderators:  Mary-Louise Timmermans, Yale University, Geology and Geophysics, New Haven, CT, United States and Richard Arthur Allard, John C. Stennis Space Center, Stennis Space Center, MS, United States
Student Paper Review Liaison:  Jeff R Carpenter, Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, Geesthacht, Germany
Index Terms:

4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4520 Eddies and mesoscale processes [OCEANOGRAPHY: PHYSICAL]
4540 Ice mechanics and air/sea/ice exchange processes [OCEANOGRAPHY: PHYSICAL]
4544 Internal and inertial waves [OCEANOGRAPHY: PHYSICAL]
Co-Sponsor(s):
  • A - Air-sea Interactions and Upper Ocean Processes
  • PO - Physical Oceanography/Ocean Circulation

Abstracts Submitted to this Session:

HE13A-01
Dynamics of the Arctic Pacific Water (91548)
Yevgeny Aksenov1, Michael J Karcher2, Andrey Yu Proshutinsky3, Ruediger Gerdes4, Sheldon Bacon1, A. J. George Nurser1, Andrew Coward1, Elena Golubeva5, Frank Kauker4, An T Nguyen6, Gennady Platov5, Martin Wadley7 and Eiji Watanabe8, (1)National Oceanography Centre, Southampton, United Kingdom, (2)Alfred-Wegener-Inst Polar, Bremerhaven, Germany, (3)Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States, (4)Alfred-Wegener-Institut, Bremerhaven, Germany, (5)Institute of Computational Mathematics and Mathematical Geophysics, Novosibirsk, Russia, (6)Massachusetts Institute of Technology, Cambridge, MA, United States, (7)University of East Anglia, School of Mathematics, Norwich, United Kingdom, (8)Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
HE13A-02
Transient halocline and freshwater dynamics of the Arctic's Beaufort Gyre (92511)
Georgy E Manucharyan, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Michael A Spall, WHOI, Woods Hole, MA, United States
HE13A-03
What Drives the Variability of the Atlantic Water Circulation in the Arctic Ocean? (89472)
Camille Lique, Laboratoire de Physique des Océans, Ifremer, Brest, France and Helen Johnson, University of Oxford, Oxford, United Kingdom
HE13A-04
Competing Effects of Elevated Vertical Mixing and Freshwater Input on the Stratification and Sea Ice Cover in a Changing Arctic Ocean (91645)
Peter Davis1, Camille Lique2, Helen Johnson1 and John Guthrie3, (1)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (2)Laboratoire de Physique des Océans, Ifremer, Brest, France, (3)Polar Science Center, APL-UW, Seattle, WA, United States
HE13A-05
Consequences of Future Increased Arctic Runoff on Arctic Ocean Stratification, Circulation, and Sea Ice Cover (87127)
Aleksi Nummelin1,2, Mehmet Ilicak1,3, Camille Li1,2 and Lars Henrik Smedsrud1,2, (1)Bjerknes Centre for Climate Research, Bergen, Norway, (2)University of Bergen, Geophysical Institute, Bergen, Norway, (3)Uni Research, Bergen, Norway
HE13A-06
Assimilation of Cryosat 2 Arctic Sea-Ice Freeboard in an Ensemble of Coupled GEOS5 (89528)
Guillaume Vernieres1, Bin Zhao2, Richard I Cullather3, Santha Akella4, Yury V Vikhliaev5, Nathan T Kurtz2 and Robin M Kovach5, (1)NASA GSFC, Greenbelt, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)University of Maryland College Park, Earth System Science Interdisciplinary Center, College Park, MD, United States, (4)Global Modeling and Assimilation Office (GMAO), NASA Goddard Space Flight Center, Greenbelt, MD, United States, (5)NASA, GSFC, Greenbelt, MD, United States
HE13A-07
Reproducing Sea-Ice Deformation Distributions With Viscous-Plastic Sea-Ice Models (90138)
Amelie Bouchat and Bruno Tremblay, McGill University, Montreal, QC, Canada
HE13A-08
Seasonal Forecasts of Ice Extent for the Arctic and Baltic Sea using GloSea5 (91878)
Andrew Peterson1, Ann B Keen1, Ed W Blockley1, Craig MacLachlan1, Adam A Scaife1 and Alexey Karpechko2, (1)Met Office Hadley Centre, Exeter, United Kingdom, (2)Finnish Meteorological Institute, Helsinki, Finland
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