C022
Modeling of the Cryosphere: Glaciers and Ice Sheets

Session ID#: 161350

Session Description:
This session focuses on process-based modeling of glaciers and ice sheets that improves our understanding of ice dynamics or enhances the capabilities of current models. We invite contributions from a broad range of theoretical, numerical, or experimental studies that explore new or improved representations of physical processes relevant to ice flow. The range of topics that is encouraged includes, but is not limited to: basal processes (such as glacial hydrology, erosion, surging, the onset of ice streams), mechanical and thermodynamic processes (constitutive relationships, material behavior, ice fracturing), and ice-ocean interactions (for example calving, grounding line dynamics).
Index Terms:

0726 Ice sheets [CRYOSPHERE]
0770 Properties [CRYOSPHERE]
0774 Dynamics [CRYOSPHERE]
0798 Modeling [CRYOSPHERE]


Primary Convener:  Helene L Seroussi, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States
Conveners:  Sophie Nowicki, University at Buffalo, Department of Geology, Buffalo, United States, Marianne Haseloff, University of Wisconsin Madison, Geosciences, Madison, United States and Matthew J Hoffman, Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics, Los Alamos, United States
 
Modeling ice flow variability of the Kangerlussuaq Glacier, southeast Greenland, during 1900-2021 (1043602)
Eigil Yuichi Hyldgaard Lippert1, Mathieu Morlighem2, Gong Cheng2 and Shfaqat Abbas Khan3, (1)DTU National Space Institute, Geodesy, København Ø, Denmark, (2)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (3)DTU National Space Institute, Geodesy, Kongens Lyngby, Denmark
 
Compensating errors in inversions for subglacial bed roughness: same steady state, different dynamic response (1047609)
Constantijn Berends1, Jorge A Bernales1, Roderik van de Wal2, William H Lipscomb3 and Tim van den Akker1, (1)Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands, (2)Utrecht University, Institute for Marine and Atmospheric research Utrecht, Utrecht, Netherlands, (3)Los Alamos Natl Lab, Los Alamos, CO, United States
 
The formation of tidally-modulated landforms at rapidly retreating grounding lines (Invited) (1048625)
Katarzyna Warburton1, Kelly Hogan2, Alastair GC Graham3, Duncan Hewitt4, Jerome A Neufeld5, Julian A. Dowdeswell6 and Robert D Larter2, (1)Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, (2)British Antarctic Survey, Cambridge, United Kingdom, (3)University of South Florida St. Petersburg, St Petersburg, FL, United States, (4)University College London, Department of Mathematics, London, United Kingdom, (5)University of Cambridge, Centre for Environmental and Industrial Flows, Department of Earth Sciences & Department of Applied Mathematics and Theoretical Physics, Cambridge, United Kingdom, (6)Scott Polar Research Institute, University of Cambridge, Cambridge, United Kingdom
 
Extensive inland thinning and speed-up of the North-east Greenland Ice Stream (1054667)
Shfaqat Abbas Khan1, Youngmin Choi2, Mathieu Morlighem3, Eric J Rignot4, Veit Helm5, Angelika Humbert5, Jeremie Mouginot6, Kurt H Kjær7, Anders Anker Bjørk8 and Romain Millan9, (1)Technical University of Denmark, Kgs. Lyngby, Denmark, (2)University of California - Irvine, Irvine, CA, United States, (3)University of California - Irvine, Department of Earth Sciences, Irvine, United States, (4)University of California Irvine, Department of Earth System Science, Irvine, United States, (5)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (6)University of Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble, France, (7)University of Copenhagen, GLOBE Institute, Copenhagen, Denmark, (8)University of Copenhagen, Department of Geosciences and Natural Resource Management, Copenhagen, Denmark, (9)University of Grenoble Alpes, Grenoble, France
 
Lake Drainage Cascades Induced by Basal Lubrication (1066515)
Joshua Rines1, Ching-Yao Lai2 and Yongji Wang2, (1)Princeton University, Princeton, NJ, United States, (2)Princeton University, Princeton, United States
 
GPU-accelerated Large-Scale Ice-Sheet Flow Modeling for Unstructured Meshes, application to Shallow Shelf Approximation (1066937)
Anjali Sandip, University of North Dakota, Mechanical Engineering, Grand Forks, ND, United States, Ludovic Rass, ETH Zurich, Department of Civil, Environmental and Geomatic Engineering, Zurich, Switzerland and Mathieu Morlighem, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States
 
The Stochastic Ice-Sheet and Sea-Level System Model v1.0 (StISSM v1.0) (1068110)
Vincent Verjans, Georgia Institute of Technology Main Campus, Atlanta, United States, Alexander Robel, Georgia Institute of Technology Main Campus, Earth and Atmospheric Science, Atlanta, United States, Helene L Seroussi, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, Elizabeth Ultee, Georgia Tech, Atlanta, GA, United States and Andrew F Thompson, California Institute of Technology, Pasadena, United States
 
Examining the Sensitivity of Ice Sheet Models to Updates in Rheology (n=4) (1070087)
Daniel F Martin, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Samuel Benjamin Kachuck, University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, Joanna D Millstein, Massachusetts Institute of Technology, Cambridge, MA, United States; Woods Hole Oceanographic Institution, Woods Hole, United States and Brent Minchew, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States
 
Modeling Ice Thickness Change Reveals Distinctive Dominant Glaciological Control Across Glacier Types (1076787)
Donglai Yang, University at Buffalo, Buffalo, NY, United States, Kristin Poinar, University at Buffalo, Department of Geology, Buffalo, NY, United States and Sophie Nowicki, University at Buffalo, Geology, Buffalo, United States
 
On the Path Dependence of Ice-sheet Contribution to Sea-level Change (1094387)
Surendra Adhikari, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
An evaluation of current status of glaciers in the western United States using machine learning algorithms and Sentinel-2A images (1094727)
Shrinidhi Ambinakudige, Mississippi State University, Mississippi State, MS, United States
 
Response of Thwaites Glacier’s Shear Margins to Ice Sheet Thinning and Surface-Slope Steepening (1098079)
Paul Summers1, Cooper Wheeler Elsworth2, Christine F Dow3, Jenny Suckale1 and TIME Science Team, (1)Stanford University, Department of Geophysics, Stanford, CA, United States, (2)Descartes Labs, Inc., Los Alamos, United States, (3)University of Waterloo, Department of Geography and Environmental Management, Waterloo, ON, Canada
 
Future fates of Thwaites Glacier with realistic ocean parameterization and atmospheric forcings under CMIP6 scenarios (1102768)
In-Woo Park, Seoul National University, Seoul, Korea, Republic of (South), Emilia Kyung Jin, Korea Polar Research Institute, Incheon, Korea, Republic of (South) and Kang Kun Lee, Seoul National University, School of Earth and Environmental Science, Seoul, South Korea
 
Dependence of the Future Mass Loss of the Antarctic Ice Sheet on Climate Forcing and Ice-Shelf Disintegration (1103423)
Ralf Greve1, Christopher Robert Scott Chambers1, Takashi Obase2, Fuyuki Saito3, Wing-Le Chan2 and Ayako Abe-Ouchi4, (1)Hokkaido University, Institute of Low Temperature Science, Sapporo, Japan, (2)University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan, (3)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (4)University of Tokyo, Atmosphere and Ocean Research Institute, Bunkyo-ku, Japan
 
Supraglacial Lake Drainage Initiated by Tidally Induced Hydro-fracture on Amery Ice Shelf (1104487)
Hanwen Zhang1, Richard F Katz1, Laura Stevens1, Timothy Davis1 and Dave May2, (1)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (2)Scripps Institution of Oceanography, La Jolla, CA, United States
 
ISMIP6 Antarctica 2300 Projections (1108974)
Helene L Seroussi, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States and The ISMIP6 Team
 
Ice model initialization using time-dependent inversions and observations (1116294)
Youngmin Choi1, Helene L Seroussi2, Alex S Gardner3 and Nicole Schlegel1, (1)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (2)Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, (3)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
 
Methods for Constraining Englacial Velocity Fields using Airborne Ice-penetrating Radar Data (1119422)
Thomas Teisberg1, Dustin M Schroeder2 and Paul Summers2, (1)Stanford University, Department of Electrical Engineering, Stanford, CA, United States, (2)Stanford University, Department of Geophysics, Stanford, CA, United States
 
A Hierarchical Modeling Approach for the Himalaya-Karakoram Glaciers (1120607)
Samar Minallah, University of Michigan Ann Arbor, Department of Climate and Space Sciences and Engineering, Ann Arbor, United States, Jeremy N Bassis, University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, United States and William H Lipscomb, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, United States
 
An improved and observationally-constrained melt rate parameterization for vertical ice fronts of marine terminating glaciers (1125596)
Kirstin Schulz1, An Nguyen1 and Helen Pillar2, (1)University of Texas at Austin, Austin, TX, United States, (2)University of Texas at Austin, Oden Institute for Computational Engineering and Sciences, Austin, United States
 
Ice flow sensitivity to high temporal resolution rifts and calving fronts at Larsen B (1127101)
Daniel Lop-Chi Cheng, Jet Propulsion Laboratory, Pasadena, United States, Eric Y Larour, Jet Propulsion Laboratory, Pasadena, CA, United States and Nicole Schlegel, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
Basal Melt rate regime in narrow ice shelf cavities of the Petermann Glacier (1127903)
Ratnakar Gadi1, Eric J Rignot2, Dimitris Menemenlis3, Enrico Ciraci2, Bernd Scheuchl1, Shivani Ehrenfeucht1 and Pietro Milillo4, (1)University of California Irvine, Irvine, CA, United States, (2)University of California Irvine, Department of Earth System Science, Irvine, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, United States, (4)NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
Enhanced Glacial Thinning and Retreat at an Ice-Cliff Terminus? (1131453)
Sierra Melton1, Byron R Parizek2, Richard B Alley1 and Sridhar Anandakrishnan3, (1)Pennsylvania State University, Geosciences, and Earth and Environmental Systems Institute, University Park, United States, (2)Pennsylvania State University, University Park, United States, (3)Pennsylvania State University, University Park, PA, United States
 
Impacts of Cyclic Effective Stress Loading on Basal Slip (1136899)
Natasha Morgan-Witts, Dougal Hansen and Lucas Zoet, University of Wisconsin-Madison, Department of Geoscience, Madison, WI, United States
 
A comparison of inverse methods and basal sliding laws applied to a hindcast model of Jakobshavn Isbræ from 2009 to 2018. (1144828)
Matt Trevers, University of Bristol, Bristol, BS8, United Kingdom, Antony John Payne, University of Bristol, Bristol, United Kingdom and Stephen L. Cornford, University of Swansea, Centre for Polar Observation and Modelling, Department of Geography, Swansea, United Kingdom
 
Simulating fine fabric structure in a coupled, anisotropic ice-flow model: application to Dome C, East Antarctica (1153120)
David Lilien1, Nicholas Mossor Rathmann2, Christine Schøtt Hvidberg2, Aslak Grinsted2, Mohammadreza Ershadi3, Reinhard Drews3 and Dorthe Dahl-Jensen1, (1)University of Manitoba, Centre for Earth Observation Science, Winnipeg, MB, Canada, (2)University of Copenhagen, Physics of ice, climate and earth, Niels Bohr Institute, Copenhagen, Denmark, (3)University of Tübingen, Department of Geosciences, Tübingen, Germany
 
Deciphering the Basal Conditions of Wilkes Basin, East Antarctica, with Ice-Penetrating Radar and Ice Sheet Modeling (1154410)
Eliza Dawson1, Dustin M Schroeder1, Winnie Chu2, Elisa Mantelli3 and Helene L Seroussi4, (1)Stanford University, Department of Geophysics, Stanford, CA, United States, (2)Georgia Institute of Technology Main Campus, School of Earth and Atmospheric Science, Atlanta, United States, (3)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia, (4)Dartmouth College, Thayer School of Engineering, Hanover, NH, United States
 
Local Forcing Mechanisms Challenge Parameterizations of Thermal Forcing for Greenland Tidewater Glaciers (1155507)
Alexander Hager and David Sutherland, University of Oregon, Department of Earth Sciences, Eugene, OR, United States
 
Rheology Controls the Spontaneous Formation of an Internal Shear Band on Rough Beds (1159004)
Emma Liu, Stanford University, Stanford, CA, United States, Ludovic Rass, ETH Zurich, Department of Civil, Environmental and Geomatic Engineering, Zurich, Switzerland, Frederic Herman, University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, Switzerland, Yuri Podladchikov, University of Lausanne, Lausanne, Switzerland and Jenny Suckale, Stanford University, Department of Geophysics, Stanford, CA, United States
 
The Role of Turbulent Mixing in Seawater Intrusion Under Grounded Ice Sheets (1161730)
Madeline Mamer, Georgia Institute of Technology Main Campus, Earth and Atmospheric Sciences, Atlanta, United States, Alexander Robel, Georgia Institute of Technology Main Campus, Earth and Atmospheric Science, Atlanta, United States, Chris Chung Kei Lai, Georgia Institute of Technology Main Campus, Civil and Environmental Engineering, Atlanta, United States and Earle Wilson, Stanford University, School of Earth, Energy, & Environmental Sciences, Stanford, United States
 
Response of the Buttressed Marine Ice Sheets to Variability in Submarine Melting (1163273)
Olga V Sergienko, Princeton University, Program in Atmospheric and Oceanic Sciences, Princeton, NJ, United States
 
The importance of evolving basal motion for long-term projections of glacier change (1168151)
William H Armstrong Jr, Appalachian State University, Geological and Environmental Sciences, Boone, NC, United States, David Polashenski, University of Alaska Fairbanks, Fairbanks, AK, United States, Martin Truffer, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, Gwenn E Flowers, Simon Fraser University, Department of Earth Sciences, Burnaby, BC, Canada and Robert S Anderson, University of Colorado, INSTAAR and Department of Geological Sciences, Boulder, CO, United States
 
Mapping dynamic mass loss by fully decomposing glacier elevation change (1170969)
Whyjay Zheng1, Facundo Sapienza2, Matthew Siegfried3, Shane Grigsby4, Tasha Snow3, Fernando Perez2 and Jonathan Taylor5, (1)University of California Berkeley, Statistics, Berkeley, CA, United States, (2)University of California Berkeley, Statistics, Berkeley, United States, (3)Colorado School of Mines, Department of Geophysics, Golden, CO, United States, (4)NASA Goddard Space Flight Center, Greenbelt, United States, (5)Stanford University, Statistics, Stanford, United States
 
Unprecedented Vulnerability of the Antarctic Ice Sheet (1171358)
Robert M Deconto, University of Massachusetts Amherst, Department of Geosciences, Amherst, United States, David Pollard, Pennsylvania State University, Earth and Environmental Systems Institute, State College, United States, Richard B Alley, Pennsylvania State University, Geosciences, and Earth and Environmental Systems Institute, University Park, United States and Edward Gasson, University of Exeter, Exeter, EX4, United Kingdom
 
Capturing the Bedrock Dependent Sensitivity of Amundsen Sea Ice Streams to Calving Front Migration, Basal Sliding and Ice Shelf Melting (1172936)
Alanna Alevropoulos-Borrill1, Nicholas R Golledge1, Daniel Lowry1 and Stephen L. Cornford2, (1)Victoria University of Wellington, Antarctic Research Centre, Wellington, New Zealand, (2)University of Swansea, Centre for Polar Observation and Modelling, Department of Geography, Swansea, United Kingdom
 
Hypergravity Experiments and Physical Modeling of Cryospheric Processes (1174058)
Bruce Kutter1, Alejandro Martinez1, Lucas Zoet2, Colin Meyer3, Lukas U Arenson4 and Heather M Brooks4, (1)University of California Davis, Civil and Environmental Engineering, Davis, United States, (2)University of Wisconsin-Madison, Madison, United States, (3)Dartmouth College, Thayer School of Engineering, Hanover, United States, (4)BGC Engineering Inc, Vancouver, Canada
 
Inferring subglacial conditions from time-dependent remote sensing data (1178855)
Marianne Haseloff, University of Wisconsin Madison, Geosciences, Madison, United States
 
Parsing the Critical Roles of Spatially-Variable Basal Rheology and Topography on the Timing and Magnitude of Outlet Glacier Retreat (1180445)
Byron R Parizek, Pennsylvania State University DuBois, DuBois, United States, Emily Schwans, Pennsylvania State University, Geosciences, University Park, United States, Richard B Alley, Pennsylvania State University, Geosciences, and Earth and Environmental Systems Institute, University Park, United States, Sridhar Anandakrishnan, Pennsylvania State University, University Park, PA, United States, Mathieu Morlighem, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States and the ITGC GHOST Team
 
Seasonality with a chance of retreat: Quantifying the impact of seasonal forcings on the timing of Greenland Ice Sheet outlet glacier terminus retreat (1180986)
Mikayla Pascual1, Denis Felikson2 and Ginny A Catania1, (1)University of Texas at Austin, Austin, TX, United States, (2)NASA Goddard Space Flight Center, Cryospheric Sciences Laboratory, Greenbelt, MD, United States
 
Modeling Seismogenic Glacier Basal Sliding under Varying Hydraulic Conditions (1187109)
Manuela Köpfli1,2, Dominik Gräff1,2, Bradley Paul Lipovsky1, Paul Selvadurai3, Daniel Farinotti2,4 and Fabian Walter4, (1)University of Washington, Department of Earth and Space Sciences, Seattle, United States, (2)ETH Zurich, Laboratory of Hydraulics, Hydrology and Glaciology (VAW), Zurich, Switzerland, (3)ETH Zurich, Swiss Seismological Service, Zurich, Switzerland, (4)WSL Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland
 
Thwaites Glacier’s Data-Driven Dynamics (1188462)
Emily Schwans, Pennsylvania State University Main Campus, University Park, PA, United States, Byron R Parizek, Pennsylvania State University, University Park, United States, Richard B Alley, Pennsylvania State University, Geosciences, and Earth and Environmental Systems Institute, University Park, United States, Sridhar Anandakrishnan, Pennsylvania State Univ, University Park, PA, United States, Mathieu Morlighem, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States and Pierre St-Laurent, Virginia Institute of Marine Science, Gloucester Point, VA, United States
 
Modeling Traveling Waves in Glaciers: Case Study on Sermeq Kujalleq, Greenland (1192208)
Grace O'Neil, Massachusetts Institute of Technology, Cambridge, United States and Brent Minchew, Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States
 
Calving and Sea-Ice Dynamics of Store Glacier, Greenland, from High Resolution Photogrammetry (1192903)
Hayden Pearson1, Henry Patton1, Johnny Ryan2 and Alun Hubbard1, (1)CAGE - Centre for Arctic Gas Hydrate, Environment and Climate, UiT The Arctic University of Norway, Department of Geoscience, Tromsø, Norway, (2)Brown University, Providence, United States
 
Calibrated probabilistic modelling of a maybe sometimes marine-terminating glacier (Invited) (1202955)
Douglas Brinkerhoff1, Brandon Tober2, Victor Devaux-Chupin3, Michael Christoffersen4, Mark A Fahnestock3, John W Holt5, Chris Larsen3, Michael Loso6, Kristin Timm7 and Martin Truffer8, (1)University of Montana, Department of Computer Science, Missoula, MT, United States, (2)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (3)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, (4)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States, (5)University of Arizona, Geosciences, Lunar and Planetary Laboratory, Tucson, AZ, United States, (6)Alaska Pacific University, Anchorage, AK, United States, (7)University of Alaska Fairbanks, International Arctic Research Center, Fairbanks, United States, (8)University of Alaska Fairbanks, Fairbanks, United States
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