HE53A:
Sea Ice Dynamics and Predictability I

Session ID#: 92377

Session Description:
The evolution of sea ice on seasonal, interannual and decadal timescales is vital to polar oceans and global climate. Bulk sea ice characteristics such as volume, concentration, thickness, floe-size distribution, albedo, melt-pond fraction, and fracture statistics, depend crucially on mechanical and thermodynamical sea ice response to atmospheric and oceanic forcing. Sea-ice predictions are complicated by the lack of optimal models for its deformation and thermodynamics that are appropriate across scales ranging from centimeters to hundreds of kilometers. Further complications arise due to transitions between the continuous and discrete element (i.e., individual floes) nature of sea ice dynamics that occur, for example, in marginal ice zones. Recent rapid increases in both computational capabilities and availability of extensive high-resolution sea-ice observations provide opportunities for developing and testing new mathematical frameworks for sea ice modeling, data assimilation, and prediction. This session invites contributions involving analyses of both remote and in-situ data, as well as numerical and theoretical process modeling to constrain sea-ice growth/melt and mechanical deformation processes in order to improve future sea-ice predictions.
Co-Sponsor(s):
  • AI - Air-Sea Interactions
  • OM - Ocean Modeling
  • PC - Past, Present and Future Climate
Index Terms:

1621 Cryospheric change [GLOBAL CHANGE]
1640 Remote sensing [GLOBAL CHANGE]
4540 Ice mechanics and air/sea/ice exchange processes [OCEANOGRAPHY: PHYSICAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
Primary Chair:  Georgy E Manucharyan, Yale University, New Haven, United States
Co-chairs:  Mary-Louise Timmermans, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States and Dimitrios Giannakis, Dartmouth College, Hanover, NH, United States
Primary Liaison:  Mary-Louise Timmermans, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States
Moderators:  Mary-Louise Timmermans, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States and Dimitrios Giannakis, Dartmouth College, Hanover, NH, United States
Student Paper Review Liaisons:  Mary-Louise Timmermans, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States and Dimitrios Giannakis, Dartmouth College, Hanover, NH, United States

Abstracts Submitted to this Session:

HE53A-01
A spring barrier for regional predictions of summer Arctic sea ice (637375)
David B Bonan1, Mitchell Bushuk2, Michael Winton3, Edward Blanchard-Wrigglesworth4 and Andrew F Thompson1, (1)California Institute of Technology, Pasadena, CA, United States, (2)NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (3)Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, (4)University of Washington, Department of Atmospheric Sciences, Seattle, United States
HE53A-02
Enhanced Arctic Sea-Ice Growth Driven by Atmospheric Warming; A Key Role for Snow (648152)
Arash Bigdeli1, An T Nguyen2, Helen Pillar3, Patrick Heimbach4 and Victor Ocaña3, (1)University of Texas at Austin, The Institute for Computational Engineering and Sciences, Austin, TX, United States, (2)University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, United States, (3)University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, Austin, United States, (4)University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, Austin, TX, United States
HE53A-03
How changes in sea ice motion influence Antarctic sea ice extent (651846)
Till J.W. Wagner, University of North Carolina at Wilmington, Wilmington, NC, United States, Hassan C Mason, University of North Carolina at Wilmington, NC, United States and Ian Eisenman, University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States
HE53A-04
Antarctic sea ice formation and melt rates estimated from under-ice ocean observations (657323)
Ethan C Campbell, University of Washington, School of Oceanography, Seattle, WA, United States and Stephen Riser, University of Washington, School of Oceanography, Seattle, United States
HE53A-05
Interaction Between Antarctic Circumpolar Current Eddies and the Sea Ice Edge: Influence on Sea Ice Extent (656757)
Scott R Springer, Earth & Space Research, Seattle, WA, United States, Michael S Dinniman, Old Dominion University, Center for Coastal Physical Oceanography, Norfolk, VA, United States and Laurence Padman, Earth & Space Research, Corvallis, United States
HE53A-06
Ice floe dispersion from moderate resolution remote sensing imagery. (657536)
Rosalinda Lopez, University of California Riverside, Mechanical Engineering, Riverside, CA, United States and Monica M. Wilhelmus, Brown University, Center for Fluid Mechanics, School of Engineering, Providence, United States
HE53A-07
Observation and modeling of wave-ice interactions in the MIZ: the relative importance of turbulent processes compared to other attenuation mechanisms (651522)
Luc Barast1, Peter Sutherland1, Dany Dumont2 and Jeremy Baudry3, (1)IFREMER, Univ. Brest, CNRS, IRD, IUEM, Laboratoire d’Océanographie Physique et Spatiale (LOPS), Brest, France, (2)Université du Québec à Rimouski (UQAR), Institut des sciences de la mer de Rimouski (ISMER), Rimouski, QC, Canada, (3)Institut des sciences de la mer, Université du Québec à Rimouski, Rimouski, QC, Canada
HE53A-08
Sea-Ice Generated Internal Waves: Impacts on Ice-Ocean Fluxes of Heat and Momentum (653871)
Kevin Thielen, University of Oxford, Oxford, United Kingdom and Andrew Wells, University of Oxford, Department of Physics, Oxford, United Kingdom
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