C006
Advancing Our Understanding of Ice-Shelf Processes

Session ID#: 160279

Session Description:
Ice shelves play a vital role in buttressing grounded ice sheets. The potential collapse of Antarctic ice shelves has been identified as a tipping point for rapid Antarctic mass loss and contributions to sea-level rise. In the Arctic, however, only few ice shelves remain. Improving our understanding of the complex processes affecting ice shelves is paramount for projecting their future evolution. This session will bring together research utilizing a wide range of methods to elucidate processes impacting the ice-shelf surface, base, dynamics and structural integrity.

Presentations are welcome from those undertaking both modeling and observational work. Potential topics may include, but are not limited to: surface melting and hydrology; ice-ocean interactions; ice-shelf buttressing and pinning points; iceberg calving; crevasse formation; grounding-zone mechanics; current, past and future change.

Index Terms:

0728 Ice shelves [CRYOSPHERE]
0774 Dynamics [CRYOSPHERE]
0776 Glaciology [CRYOSPHERE]


Primary Convener:  Martin Wearing, University of Edinburgh, Edinburgh, United Kingdom
Conveners:  Sammie Claire Buzzard, University of Reading, Reading, United Kingdom, Susheel Adusumilli, Scripps Institution of Oceanography, La Jolla, CA, United States and Martin Wearing, Lamont-Doherty Earth Observatory, Palisades, NY, United States
 
Leveraging Multidecadal Remote Sensing Data to Evaluate Interactions Between Century-Scale Ice-Dynamics and the Local Evolution of Crary Ice Rise (1055226)
Hannah Verboncoeur, Colorado School of Mines, Golden, CO, United States, Matthew Siegfried, Colorado School of Mines, Department of Geophysics, Hydrologic Science & Engineering Program, Golden, CO, United States, Jeremy Paul Winberry, Central Washington University, Department of Geological Sciences, Ellensburg, WA, United States, Nicholas Holschuh, Amherst College, Geology, Amherst, MA, United States, Angelo Tarzona, Georgia Institute of Technology Main Campus, Atlanta, United States, Winnie Chu, Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States and Dustin M Schroeder, Stanford University, Department of Geophysics, Stanford, CA, United States
 
Buttressing Effect and Disintegration of the Landfast Sea Ice Pack in the Larsen B Embayment, Antarctic Peninsula (1064620)
Yudong Sun1, Bryan V Riel2 and Brent Minchew2, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States
 
Wintertime Polynya Structure and Variability at Pine Island Glacier, West Antarctica, from Thermal Remote Sensing and Seal-borne Observations (1068245)
Elena Savidge1, Tasha Snow1, Matthew Siegfried1, Yixi Zheng2, Ana Beatriz Villas Boas3, Guilherme Bortolotto4, Lars Boehme4 and Karen E Alley5, (1)Colorado School of Mines, Department of Geophysics, Golden, CO, United States, (2)University of East Anglia, Norwich, United Kingdom, (3)Colorado School of Mines, Department of Geophysics, Golden, United States, (4)University of St Andrews, St Andrews, United Kingdom, (5)University of Manitoba, Department of Environment and Geography, Winnipeg, MB, Canada
 
MIMO-EIS - Moitoring Melt Where Ice Meets Ocean – Cotinuous Observations of Ice-Shelf Basal Melt of Ekström Ice Shelf, Antarctica (1071585)
Olaf Eisen1, Sophie Berger1, Mohammadreza Ershadi2, Reinhard Drews2, Tanja Fromm1, Tore Hattermann3, Veit Helm1, Niklas Neckel1, Frank Pattyn4, Daniel Steinhage1 and Ole Zeising1, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (2)University of Tübingen, Department of Geosciences, Tübingen, Germany, (3)Norwegian Polar Institute, Tromso, Norway, (4)Université Libre de Bruxelles, Laboratoire de Glaciologie, Brussel, Belgium
 
Projections of Amery Ice Shelf, East Antarctica melting based on CMIP6 Scenarios. (1085840)
Jing Jin1, Antony John Payne1 and Christopher Bull2, (1)University of Bristol, Bristol, United Kingdom, (2)Department of Geography and Environmental Sciences, Northumbria University, Newcastle Upon Tyne, United Kingdom
 
The Potential of Artificial Intelligence for the Monitoring of Ice Shelf Surface Hydrology in Multi-Sensor Remote Sensing Data (Invited) (1089562)
Mariel Dirscherl1, Andreas Dietz1 and Claudia Kuenzer1,2, (1)German Aerospace Center (DLR), Earth Observation Center (EOC), Oberpfaffenhofen, Germany, (2)University of Wuerzburg, Institute of Geography and Geology, Wuerzburg, Germany
 
Creating an Antarctic Rift Catalog using ICESat-2: Measurement Algorithm Design and Validation on Brunt Ice Shelf, and Recent Variability in the Opening Rate of the Halloween Crack (1094889)
Ashley Morris, University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, WA, United States, Bradley Paul Lipovsky, University of Washington, Department of Earth and Space Sciences, Seattle, United States, Catherine C Walker, Woods Hole Oceanographic Institution, Woods Hole, United States and Oliver Marsh, British Antarctic Survey, Cambridge, United Kingdom
 
An Evaluation of the Southern Ocean high-resolution simulation(SOhi) (1098517)
Andy Dinh, University of California Irvine, Department of Earth System Science, Irvine, CA, United States, Eric J Rignot, University of California Irvine, Department of Earth System Science, Irvine, United States, Matthew R Mazloff, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States and Ian G Fenty, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
Tidal Migration of the Grounding Line Position of Jakobshavn Isbræ, West Greenland, using Terrestrial Radar Interferometer Data. (1102476)
Jae Hun Kim, University of California Irvine, Irvine, CA, United States, Eric J Rignot, University of California Irvine, Department of Earth System Science, Irvine, United States; Jet Propulsion Laboratory, Pasadena, United States, David Holland, New York University, Courant Institute of Mathematical Sciences, New York, NY, United States; New York University Abu Dhabi, Center for Sea Level Change, Abu Dhabi, United Arab Emirates and Denise Holland, New York University, New York, United States
 
Measurements of Centimetre-scale Temperature Gradients at the Ice-water Boundary of Floating Glacier Ice (1103150)
Hayden Allen Johnson1, Grant B Deane1, Oskar Glowacki2 and Malcolm Dale Stokes1, (1)Scripps Institution of Oceanography, La Jolla, United States, (2)Institute of Geophysics Polish Academy of Sciences, Warsaw, Poland
 
Simulation and Analysis of Deformation and Stability in Antarctic Ice Shelves (1103770)
Neosha Narayanan1, Joanna D Millstein1 and Brent Minchew2, (1)Massachusetts Institute of Technology, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States
 
Study of the Grounding Zone of Amery Ice Shelf, Antarctica Using Differential Radar Interferometry (1119765)
Hanning Chen1, Eric J Rignot2, Bernd Scheuchl3, Jeremie Mouginot4 and Shivani Ehrenfeucht3, (1)University of California Irvine, ESS, Irvine, CA, United States, (2)University of California Irvine, Department of Earth System Science, Irvine, United States, (3)University of California Irvine, Irvine, CA, United States, (4)University of Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble, France
 
Modeling of the Amundsen Sea Embayment with Coupled Ice-Ocean Simulations (1127422)
Divya Allu Peddinti, Dartmouth College, Hanover, NH, United States, Helene L Seroussi, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States and Yoshihiro Nakayama, Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
 
Rough Around the Edges: Is Changing Ice Shelf Roughness a Precursor to Collapse? (1128461)
Aidan Dealy, University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, United States, Stephanie Olinger, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, Ashley Morris, University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, WA, United States and Bradley Paul Lipovsky, University of Washington, Department of Earth and Space Sciences, Seattle, United States
 
Evaluating Petermann Gletscher ice-shelf basal melt and ice-stream dynamics from high-resolution InSAR data. (1135449)
Enrico Ciraci, NASA Jet Propulsion Laboratory, Pasadena, United States, Eric J Rignot, University of California Irvine, Department of Earth System Science, Irvine, United States, Bernd Scheuchl, University of California Irvine, Irvine, CA, United States, Pietro Milillo, University of Houston, Department of Civil and Environmental Engineering, Houston, United States and Luigi Dini, Italian Space Agency, Matera, Italy
 
Influence of Glacial Meltwater on Spatio-Temporal Variations of Hydrography in continental shelf region of the Ross Sea observed by Instrumented Seals (1141949)
Seung-Tae Yoon1, Won Young Lee2, Jikang Park3, Hyunjae Chung4, Mijin Park4, Won Sang Lee5, Sukyoung Yun5 and Jiyeon Lee2, (1)Kyungpook National University, Daegu, Korea, Republic of (South), (2)Korea Polar Research Institute, Incheon, South Korea, (3)Kyung Hee National University, Department of Biology, Seoul, South Korea, (4)Seoul National University, School of Biological Sciences, Seoul, South Korea, (5)Korea Polar Research Institute, Unit of Ice Sheet and Sea Level Changes, Incheon, South Korea
 
Exploring the Dynamics and Causes of Multiple Supraglacial Lake Drainages at the Amery Ice Shelf Grounding Zone (1151557)
Anton Fatula, Pennsylvania State University, Department of Geography, University Park, United States and Luke D Trusel, Pennsylvania State University, Department of Geography, University Park, PA, United States
 
Repeated Tidally Induced Hydrofracture of Supraglacial Lakes at the Amery Ice Shelf Grounding Zone (1153751)
Luke D Trusel1, Zhuolai Pan1, Mahsa S Moussavi2 and Anton Fatula1, (1)Pennsylvania State University, Department of Geography, University Park, United States, (2)University of Colorado at Boulder, Boulder, CO, United States
 
Investigating controls on Larsen Ice Shelf retreat from a multidecadal satellite data record and ice shelf modeling experiments (1155148)
Shujie Wang, Pennsylvania State University Main Campus, University Park, PA, United States, Hongxing Liu, University of Alabama, Department of geography, Tuscaloosa, United States, Richard B Alley, Pennsylvania State University, Geosciences, and Earth and Environmental Systems Institute, University Park, United States, Kenneth C. Jezek, Byrd Polar and Climate Research Center, Columbus, United States, Patrick Alexander, Columbia University of New York, New York, NY, United States and Lei Wang, Louisiana State University, Baton Rouge, LA, United States
 
Aquifers in Antarctic Ice Shelves and their Effects on Ice Shelf Stability (1161566)
Ted A Scambos, University of Colorado, Boulder, CIRES, Earth Science and Observation Center, Boulder, United States, Julie Z Miller, University of Colorado at Boulder, CIRES, Earth Science and Observation Center, Boulder, United States, Riley Culberg, Stanford University, Department of Electrical Engineering, Stanford, CA, United States, Christopher A. Shuman, University of Maryland, Baltimore County, Greenbelt, United States and David G Long, Brigham Young University, Department of Electrical and Computer Engineering, Provo, UT, United States
 
Basal Melting of Ross Ice Shelf based on ROSETTA-Ice Radio-echo Sounding Observations (1161593)
Kiera Tran1, Winnie Chu2, Angelo Tarzona2, Dustin M Schroeder3 and S Isabel Cordero4, (1)Georgia Institute of Technology, Dunwoody, GA, United States, (2)Georgia Institute of Technology Main Campus, Atlanta, United States, (3)Stanford University, Department of Geophysics, Stanford, CA, United States, (4)Lamont -Doherty Earth Observatory, Palisades, NY, United States
 
Weather and Climate Controls for Ocean Wave Corridors to Fast Ice and Ice Shelf Areas (1166314)
Ted A Scambos, University of Colorado, Boulder, CIRES, Earth Science and Observation Center, Boulder, United States, Sandra Barreira, Argentine Hydrographic Service, Buenos Aires, Argentina and Naomi Ochwat, University of Colorado, Boulder, Boulder, United States
 
Submarine Melting of Antarctic Ice Shelves on Sub-annual Time Scales from CryoSat-2 and ICESat-2 Altimetry (1170805)
Johan Nilsson1, Ala Khazendar1, Nicole Schlegel1, Michael Schodlok2 and Hong Zhang1, (1)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
 
Imaging Grounding Line Change using Repeat, High-resolution DEMs (1171018)
Allison Chartrand, Thomas R Chudley and Ian Howat, Ohio State University, Byrd Polar & Climate Research Center, Columbus, United States
 
On the Relative Importance of Offshelf/Onshelf Drivers of Variability in mCDW Inventory on the Amundsen Shelf, Antarctica (1171409)
Pierre St-Laurent, Virginia Institute of Marine Science, Gloucester Point, VA, United States, Sharon Elisabeth Stammerjohn, University of Colorado Boulder, Boulder, CO, United States, Ted Maksym, Woods Hole Oceanographic Inst, Woods Hole, MA, United States and Robert M Sherrell, Rutgers University, Departments of Marine and Coastal Sciences and Earth and Planetary Sciences, New Brunswick, NJ, United States
 
Bathymetric Control Of Warm Water Inflow To Antarctic Ice Shelf Grounding Lines (1176727)
Garrett Finucane and Andrew Stewart, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States
 
Derwael Ice Rise: Comparing 3D Modelled Stratigraphy and Observed Internal Radar Horizons to Understand Raymond Arch and Shear Zone Evolution (1179873)
Clara Henry1, Reinhard Drews2, Clemens Schannwell1, Vjeran Višnjević2, Inka Koch2, Heiko Spiegel2, Leah Sophie Muhle2, Todd Alan Ehlers2, Olaf Eisen3, Daniela Jansen4 and Steven Franke5, (1)Max Planck Institute for Meteorology, Hamburg, Germany, (2)University of Tübingen, Department of Geosciences, Tübingen, Germany, (3)University of Bremen, Department of Geosciences, Bremen, Germany, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Bremerhaven, Germany, (5)Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
 
Antarctic Undercurrents and Nonlinear Ocean-Sea Ice-Ice Shelf Interactions (1179914)
Yidongfang (Clara) Si1, Andrew Stewart2, Alessandro Silvano3 and Alberto Naveira Garabato3, (1)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (2)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States, (3)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom
 
Ice-Shelf Ocean Boundary Layer Dynamics from Large-Eddy Simulations (1182335)
Carolyn Branecky Begeman1, Xylar Asay-Davis2 and Luke Van Roekel2, (1)Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics Group, Los Alamos, United States
 
Grounding Zone Measurements from Spaceborne Interferometric SAR as a Crucial Descriptor of the Ice Ocean Interface of Glaciers (1182365)
Bernd Scheuchl1, Eric J Rignot2, Jeremie Mouginot3,4, Pietro Milillo5, Seongsu Jeong6, Enrico Ciraci2 and Yara Mohajerani7,8, (1)University of California Irvine, Irvine, CA, United States, (2)University of California Irvine, Department of Earth System Science, Irvine, United States, (3)University of Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble, France, (4)University of California Irvine, Earth System Science, Irvine, United States, (5)University of Houston, Houston, United States, (6)Jet Propulsion Laboratory, California Institute of Technology, Irvine, United States, (7)EnvAI Solutions Inc., Toronto, Canada, (8)University of Washington, Civil and Environmental Engineering, Seattle, United States
 
Enhancement of Basal Melting by Submesoscale Eddies in Ice Shelf Cavities of the Amundsen Sea (1194371)
Georgy E Manucharyan, University of Washington, School of Oceanography, Seattle, United States and Yoshihiro Nakayama, Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
 
Direct observations of ice melt, freeze, and ocean circulation in an ice shelf basal crevasse (1196584)
Peter Washam, Cornell University, Ithaca, NY, United States
 
Mapping perennial firn aquifers and brine infiltration on Antarctica ice shelves from space using enhanced-resolution L-band radar backscatter image time series (1198610)
Julie Z Miller, University of Colorado at Boulder, CIRES, Earth Science and Observation Center, Boulder, United States, David G Long, Brigham Young University, Department of Electrical and Computer Engineering, Provo, UT, United States, Christopher A. Shuman, NASA Goddard Space Flight Center, University of Maryland, Baltimore County, Greenbelt, United States, Riley Culberg, Princeton University, Department of Geosciences, Princeton, United States, Mary J. Brodzik, University of Colorado at Boulder, CIRES, National Snow and Ice Data Center, Boulder, United States and Ted A Scambos, University of Colorado, Boulder, CIRES, Earth Science and Observation Center, Boulder, United States
 
The Beardmore Basal Body: Tracing Basal Features of the Ross Ice Shelf (1199409)
S Isabel Cordero, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Alexandra Boghosian, LDEO of Columbia University, Palisades, United States and Kirsty J Tinto, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
 
Analysis of Buttressing Effects at the Crosson and Dotson Ice Shelves Over ~40 Years (1199670)
Sarah F Child, University of Colorado at Boulder, Boulder, CO, United States and Ted A Scambos, University of Colorado, Boulder, CIRES, Earth Science and Observation Center, Boulder, United States
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