C010
Incorporating Improved Ice Deformation Behavior into Ice Sheet Models: A Combined Modeling, Experimental, and Observational Approach II Posters

Tuesday, 8 December 2020: 04:00-20:59
Poster
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
 
Characterizing Laboratory-Prepared Specimens of Snow and Firn with Electron Backscatter Diffraction (774617)
Kevin Hammonds and Evan Schehrer, Montana State University, Civil Engineering, Bozeman, MT, United States
 
Creep of Polar Firn (666319)
Ian Baker, Dartmouth College, Hanover, NH, United States and Yuan Li, Dartmouth College, Thayer, Hanover, NH, United States
 
Flow Laws for Ice Sheet Modelling: what do Experiments tell us? (686217)
David John Prior1, Paul Dirk Bons2, Andrew J. Cross3, William B Durham4, Sheng Fan5, David L Goldsby6, Albert Griera7, Travis F Hager6, Maria-Gema Llorens7 and Chao Qi8, (1)University of Otago, Geology, Dunedin, New Zealand, (2)Univ Tuebingen, Tuebingen, Germany, (3)Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (4)MIT 54-720, Cambridge, MA, United States, (5)University of Otago, Dunedin, New Zealand, (6)University of Pennsylvania, Philadelphia, PA, United States, (7)Universitat Autònoma de Barcelona, Departament de Geologia, Bellaterra (Cerdanyola del Vallès), Spain, (8)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
 
In-Situ Measurements of Three-Dimensional Deformation in the Greenland Ice Sheet (682835)
Megan Thompson-Munson1,2, Neil F Humphrey1, Joel T Harper3 and Toby W Meierbachtol3, (1)University of Wyoming, Department of Geology and Geophysics, Laramie, WY, United States, (2)University of Colorado Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States, (3)University of Montana, Geosciences, Missoula, MT, United States
 
Inferring Ice Fabric Anisotropy Using Polarimetric Radar in Different Flow Regimes (729650)
Mohammadreza Ershadi1, Reinhard Drews1, Carlos Martin2, Olaf Eisen3, Hugh F J Corr2, Catherine Ritz4, Robert Mulvaney2, Angelika Humbert3 and Ole Zeising3, (1)University of Tübingen, Department of Geosciences, Tübingen, Germany, (2)NERC British Antarctic Survey, Cambridge, United Kingdom, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (4)LGGE Laboratoire de Glaciologie et Géophysique de l’Environnement, Saint Martin d'Hères, France
 
Investigating the Mechanical Behavior of H2SO4-Doped Specimens of Simulated Polar Firn (710185)
Evan Schehrer and Kevin Hammonds, Montana State University, Civil Engineering, Bozeman, MT, United States
 
Microstructural Analysis of Intensely Sheared, Coarse-Grained Marginal Ice on Storglaciären, Sweden, Using Cryo-Electron Backscatter Diffraction (EBSD) (730630)
Morgan Monz1, Peter J Hudleston1, David John Prior2, Zachary D Michels1, Sheng Fan2, Marianne Negrini2 and Chao Qi3, (1)University of Minnesota Twin Cities, Earth and Environmental Sciences, Minneapolis, MN, United States, (2)University of Otago, Dunedin, New Zealand, (3)Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
 
Microstructures in a glacial shear margin (728099)
Christopher C Gerbi1, Stephanie G Mills1, Renee Clavette1, Seth W Campbell2, Steven Bernsen1, David Clemens-Sewall3, Ian Lee4, Robert L Hawley5, Karl J Kreutz1,6 and Kate Hruby1, (1)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States, (2)University of Maine, School of Earth and Climate Sciences and Climate Change Institute, Orono, ME, United States, (3)Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, (4)Pennsylvania State University, Geosciences, and Earth and Environmental Systems Institute, University Park, PA, United States, (5)Dartmouth College; IASC Cryosphere WG Member, Hanover, NH, United States, (6)University of Maine, Climate Change Institute, Orono, ME, United States
 
Modeling ice-crystal fabric for use as a proxy for ice-stream stability (669123)
David Lilien1, Nicholas Mossor Rathmann1, Christine Schøtt Hvidberg2 and Dorthe Dahl-Jensen2, (1)University of Copenhagen, Physics of ice, climate and earth, Niels Bohr Institute, København K, Denmark, (2)University of Copenhagen, Physics of ice, climate and earth, Niels Bohr Institute, Copenhagen, Denmark
 
Robotized Inclinometer for Monitoring of Ice Borehole Deformation (713294)
Gaoli Zhao1, Jialin Hong2 and Pavel Talalay2, (1)Jilin University, POLAR RESEARCH CENTER, Jilin, China, (2)Jilin University, POLAR RESEARCH CENTER, Changchun, China
 
Sensitivity of the Effective Viscosity of Temperate Ice to its Water Content (687645)
Conner Adams1, Neal R Iverson2, Lucas Zoet3, Christian Helanow4 and Charlotte E. Bate4, (1)Iowa State University, Ames, IA, United States, (2)Iowa State univ, Ames, IA, United States, (3)University of Wisconsin Madison, Geoscience, Madison, WI, United States, (4)Iowa State University, Geological and Atmospheric Sciences, Ames, IA, United States
 
Spontaneous Formation of an Internal Shear Band Facilitates the Flow-to-sliding Transition on Rough Beds Suggesting an Alternative Sliding Law (679164)
Emma Liu, Stanford University, Stanford, CA, United States, Ludovic Räss, ETH Zurich, Zurich, Switzerland, Frederic Herman, Institute of Earth Surface Dynamics (IDYST), Faculty of Geosciences and Environment (FGSE), University of Lausanne, Lausanne, Switzerland, Yuri Podladchikov, University of Lausanne, Lausanne, Switzerland and Jenny Suckale, Stanford University, Department of Geophysics, Stanford, CA, United States
 
The control of crystallographic preferred orientation (CPO) development and grain size reduction on ice mechanical weakening (enhancement) (678648)
Sheng Fan1, David John Prior1, Travis F Hager2, Andrew J. Cross3 and David L Goldsby2, (1)University of Otago, Dunedin, New Zealand, (2)University of Pennsylvania, Philadelphia, PA, United States, (3)Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
 
The impact of the deformation description on the flow regime of Thwaites Glacier (687726)
Felicity McCormack1, Roland Charles Warner2, Adam Treverrow2 and Helene L Seroussi3, (1)Monash University, School of Earth, Atmosphere & Environment, Melbourne, VIC, Australia, (2)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, (3)NASA Jet Propulsion Laboratory, Pasadena, CA, United States
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