C015
Incorporating Improved Ice Deformation Behavior into Ice Sheet Models: A Combined Modeling, Experimental, and Observational Approach I

Tuesday, 8 December 2020: 05:30-06:30
Virtual
Primary Convener:  David John Prior, University of Otago, Geology, Dunedin, New Zealand
Conveners:  Felicity McCormack, Monash University, School of Earth, Atmosphere & Environment, Melbourne, VIC, Australia, Erin Pettit, Oregon State, Corvallis, Oregon, United States and Ricarda Winkelmann, Potsdam Institute for Climate Impact Research, Potsdam, Germany; University of Potsdam, Institute of Physics and Astronomy, Potsdam, Germany
Primary Liaison:  David John Prior, University of Otago, Dunedin, New Zealand
Chairs:  David John Prior, University of Otago, Dunedin, New Zealand, Felicity McCormack, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, Erin Pettit, Oregon State, Corvallis, Oregon, United States and Ricarda Winkelmann, University of Potsdam, Institute of Physics and Astronomy, Potsdam, Germany
OSPA Liaison:  Felicity McCormack, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia
05:30
C015-01
Climatic imprint in the mechanical properties of ice sheets and its effect on ice flow. Observations from South Pole and EPICA Dome C ice cores. (Invited) (732222)
Carlos Martin1, Howard Conway2, Michelle R Koutnik2, Robert Mulvaney3, Mohammadreza Ershadi4, Reinhard Drews4, Thomas Bauska1 and Catherine Ritz5, (1)NERC British Antarctic Survey, Cambridge, United Kingdom, (2)University of Washington, Department of Earth and Space Sciences, Seattle, WA, United States, (3)British Antarctic Survey, Cambridge, United Kingdom, (4)University of Tübingen, Department of Geosciences, Tübingen, Germany, (5)Institut des Géosciences de l’Environnement (IGE), Grenoble, France
05:40
C015-02
Dynamic recrystallization and energy balance within glacier shear margins (681253)
Meghana Ranganathan1, Brent Minchew2, Colin R Meyer3 and Matej Pec1, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, (3)Dartmouth College, Hanover, United States
05:44
C015-03
Grain-size-sensitive creep of ice in the 'dislocation creep' regime (756536)
Travis F Hager1, Chao Qi2, Sheng Fan3, David John Prior3, Rilee Thomas3, Andrew J. Cross4 and David L Goldsby1, (1)University of Pennsylvania, Philadelphia, PA, United States, (2)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (3)University of Otago, Dunedin, New Zealand, (4)Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
05:48
C015-04
Radar Characterization of Ice Crystal Orientation Fabric and Anisotropic Rheology within an Antarctic Ice Stream (Invited) (697381)
Thomas Jordan1, Carlos Martin2, Alex Brisbourne2, Dustin M Schroeder3 and Andrew Smith2, (1)University of Bristol, School of Geographical Sciences, Bristol, United Kingdom, (2)NERC British Antarctic Survey, Cambridge, United Kingdom, (3)Stanford University, Department of Geophysics, Department of Electrical Engineering, Stanford, CA, United States
05:58
C015-05
Spread in flow law parameters creates a large uncertainty in ice loss in flowline setup and simulations of the Greenland Ice Sheet (692525)
Maria Zeitz1,2, Anders Levermann1,3 and Ricarda Winkelmann1,2, (1)Potsdam Institute for Climate Impact Research, Potsdam, Germany, (2)University of Potsdam, Institute of Physics, Potsdam, Germany, (3)Columbia University of New York, Palisades, United States
06:02
C015-06
The Evolution of Ice Fabrics: A Continuum Modelling Approach Validated Against Laboratory Experiments (670031)
Daniel Richards1, Sam Pegler2, Sandra Piazolo3 and Oliver G Harlen2, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)University of Leeds, Mathematics, Leeds, United Kingdom, (3)University of Leeds, Earth and Environment, Leeds, United Kingdom
06:06
C015-07
The Ice Shelf Lasagne: Understanding the Effects of Differing Rheologies on the Dynamics of an Ice Shelf (714164)
Lisa Craw, Institute for Marine and Antarctic Studies, Taroona, TAS, Australia, Adam Treverrow, Institute for Marine and Antarctic Studies, Taroona, Australia, Felicity McCormack, Monash University, School of Earth, Atmosphere & Environment, Melbourne, VIC, Australia, Sue Cook, University of Tasmania, Hobart, TAS, Australia and Jason L Roberts, Australian Antarctic Division, Kingston, TAS, Australia
06:10
Discussion
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