C022
Investigating the Feedbacks between Solid Earth Properties and the Cryosphere

Session ID#: 74693

Session Description:
As our climate continues to warm, the future behavior of the ice sheets is a growing concern. Climatic factors clearly play an important role, but non-climatic factors, such as tectonic, geothermal, and GIA forcings, also have significant influence on ice sheet behavior. However, these factors are often not well constrained. This session is inspired by the SCAR-SERCE program and the IASC, which are aimed at improving our understanding of the interactions between the solid Earth and the cryosphere. We encourage contributions from a wide variety of studies related to the structure and geodynamic evolution in Greenland and Antarctica and how these parameters influence the ice sheets. Contributions may include active- and passive-source seismic analyses, geological and geophysical investigations, geodetic studies, heat flux measurements, ice sheet and GIA modeling, and other related topics. We aim to highlight investigations that elucidate the feedbacks between Earth structure and the overlying ice sheet.
Co-Organized:
  • G - Geodesy
  • S - Seismology
  • T - Tectonophysics
Index Terms:

0726 Ice sheets [CRYOSPHERE]
0774 Dynamics [CRYOSPHERE]
1209 Tectonic deformation [GEODESY AND GRAVITY]
8124 Earth's interior: composition and state [TECTONOPHYSICS]

Primary Convener:  Samantha Elizabeth Hansen, The University of Alabama, Geological Sciences, Tuscaloosa, AL, United States
Conveners:  Natalya A Gomez, McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, Ricarda Dziadek, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany and Aurélien Mordret, Massachusetts Institute of Technology, Cambridge, MA, United States
Primary Liaison:  Samantha Elizabeth Hansen, The University of Alabama, Geological Sciences, Tuscaloosa, AL, United States
 
Geothermal Heat Flow and its Influence at the Base of Ice Sheets (Invited) (488739)
Yasmina M. Martos, NASA Goddard Space Flight Center, Greenbelt, MD, United States
 
Constraints of Geothermal Flux from Coastal Domes of the Ross Ice Sheet, Antarctica (497310)
Surabhi Biyani, University of Washington Seattle Campus, Earth and Space Sciences and Atmospheric Sciences, Seattle, WA, United States, T. J. Fudge, University of Washington, Earth and Space Sciences, Seattle, WA, United States, David Clemens-Sewall, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, Robert L Hawley, Dartmouth College; IASC Cryosphere WG Member, Hanover, NH, United States and Elizabeth K Urban, University of Washington Seattle Campus, Earth and Space Sciences, Seattle, United States
 
Impact of ice load-bedrock uplift feedback on the long-term evolution of the Greenland ice sheet (503739)
Jan Haacker1, Maria Zeitz2 and Ricarda Winkelmann2, (1)Potsdam, Brandenburg, Germany, (2)Potsdam Institute for Climate Impact Research, Potsdam, Germany
 
Glacial Isostatic Adjustment with 3D Earth models in North America (513467)
Tanghua Li1, Nicole Khan2, Simon E Engelhart3, Matteo Vacchi4, W Richard Peltier5, Patrick P C Wu2,6 and Benjamin Peter Horton1,7, (1)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (2)University of Hong Kong, Department of Earth Sciences, Hong Kong, Hong Kong, (3)University of Rhode Island, Department of Geosciences, Narragansett, RI, United States, (4)CEREGE, Aix-en-Provence Cedex, France, (5)Univ Toronto, Toronto, ON, Canada, (6)University of Calgary, Department of Geoscience, Calgary, AB, Canada, (7)Nanyang Technological University, Asian School of the Environment, Singapore, Singapore
 
Towards Explaining the Causes of GPS-derived Crustal Uplift Rates in Greenland (520990)
Surendra Adhikari1, Erik Roman Ivins2, Glenn A. Milne3, Lambert Caron1, Johan Nilsson4, Shfaqat Abbas Khan4, Kristian K Kjeldsen5, Eric Y Larour1 and Alex S Gardner6, (1)Jet Propulsion Laboratory, Pasadena, CA, United States, (2)JPL/Caltech, Pasadena, CA, United States, (3)University of Ottawa, Earth and Environmental Sciences, Ottawa, ON, Canada, (4)Technical University of Denmark - Space, Kongens Lyngby, Denmark, (5)DTU Space, Lyngby, Denmark, (6)NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
Crustal and Upper Mantle Structure beneath the Wilkes and Aurora Subglacial Basins, East Antarctica from Full-Waveform Ambient Noise Tomography. (529671)
Ashish Kumar1, Erica Emry2 and Samantha Hansen1, (1)University of Alabama, Tuscaloosa, AL, United States, (2)Pennsylvania State University Main Campus, University Park, PA, United States
 
Magnetotelluric Constraints on Upper Mantle Viscosity Structure and Basal Melt Beneath the Greenland Ice Sheet (534842)
Clinton P Conrad1, Kate Selway2, Maaike Weerdesteijn1, Silje Smith-Johnsen3, Kerim Hestnes Nisancioglu4 and Nanna B. Karlsson5, (1)University of Oslo, Centre for Earth Evolution and Dynamics (CEED), Oslo, Norway, (2)Macquarie University, Department of Earth and Planetary Sciences, Sydney, Australia, (3)University of Bergen, Bjerknes Centre for Climate Research, Bergen, Norway, (4)University of Bergen and the Bjerknes Centre for Climate Research, Bergen, Norway, (5)University of Copenhagen, Copenhagen, Denmark
 
Spatio-temporal evolution of the Greenland ice sheet and associated deformation of the Earth (535712)
Ana Sanchez1,2, Laurent Metivier2,3, Luce Fleitout4, Marianne Greff-Lefftz5 and Kristel Chanard3,6, (1)CNES French National Center for Space Studies, Paris, France, (2)Université de Paris, Institut de physique du globe de Paris, CNRS, IGN, F-75005 Paris, France., Paris, France, (3)ENSG-Géomatique, IGN, F-77455 Marne-la-Vallée, France., Marne-la-Vallée, France, (4)Ecole Normale Supérieure Paris, Paris, France, (5)Université de Paris, Institut de physique du globe de Paris, CNRS, Paris, France, (6)IPGP / IGN, Paris, France
 
Rapid viscoelastic deformation slows marine ice sheet instability at Pine Island Glacier (543091)
Samuel Benjamin Kachuck, University of Michigan Ann Arbor, Ann Arbor, MI, United States, Daniel F Martin, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Jeremy N Bassis, University of Michigan, Ann Arbor, MI, United States and Stephen F Price, Los Alamos National Laboratory, Los Alamos, NM, United States
 
Enhanced images and new models of the Wilkes Subglacial Basin help constrain the variability in geological boundary conditions for the East Antarctic Ice Sheet (545593)
Alessandro Ghirotto1, Fausto Ferraccioli2, Egidio Armadillo1, Duncan A Young3, Donald D Blankenship3 and Martin J Siegert4, (1)University of Genoa, Genoa, Italy, (2)NERC British Antarctic Survey, Cambridge, United Kingdom, (3)University of Texas, Institute for Geophysics, Austin, TX, United States, (4)Imperial College London, London, United Kingdom
 
Heterogeneous Uppermost Mantle Structure Beneath Central and Eastern West Antarctica (546965)
Erica Margaret Lucas1, David Romualdo Soto2, Andrew Nyblade3, Richard C Aster4, Douglas Wiens5, John Paul O'Donnell6, Graham William Stuart7, Andrew Jason Lloyd5, Jeremy Paul Winberry8, Audrey D Huerta9 and Terry J Wilson10, (1)Pennsylvania State University Main Campus, University Park, PA, United States, (2)Pennsylvania State University, State College, PA, United States, (3)Pennsylvania State University Main Campus, Department of Geosciences, University Park, PA, United States, (4)Colorado State University, Geosciences Department, Fort Collins, CO, United States, (5)Washington University in St Louis, St. Louis, MO, United States, (6)University of Leeds, Leeds, LS2, United Kingdom, (7)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (8)Central Washington Univ, Ellensburg, WA, United States, (9)Central Washington University, Ellensburg, WA, United States, (10)Ohio State University, Columbus, OH, United States
 
The Role of Dynamic Topography on Glacial Inception in North America (556017)
Sophie Coulson1, Jacqueline Austermann2, Mark Hoggard3, Fred Richards1, Marisa Julia Borreggine1 and Jerry X Mitrovica1, (1)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, (2)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States
 
Constraining Geothermal Heat Flux Beneath Ice Sheets Using Thermal Isostasy (571028)
Derrick P Hasterok1, Matthew Gard2, Jacqueline Ann Halpin3, Martin P Hand4, Alicia Pollett5, Sandra McLaren6, Tom Raimondo7, Simon Willcocks2 and Matthew Linke2, (1)University of Adelaide, Dept of Earth Sciences, Adelaide, SA, Australia, (2)University of Adelaide, Adelaide, Australia, (3)University of Tasmania, Hobart, TAS, Australia, (4)School of Physical Sciences, The University of Adelaide, Department of Geology and Geophysics, Adelaide, Australia, (5)University of South Australia, Adelaide, Australia, (6)University of Melbourne, Parkville, Australia, (7)University of South Australia, School of Natural and Built Environments, Adelaide, Australia
 
Feedback Mechanisms and Transport Phenomena at the Basal Ice Sheet Interface - Modeling Approaches, Sensitivity Analysis and the Impact of Subsurface Salt Domes (573746)
Sascha Barbara Bodenburg1, Wojciech Blachut2, Christian Huebscher3, Sonke Reiche2 and Julia Kowalski1, (1)RWTH Aachen University, Aachen Institute for Advanced Study in Computational Engineering Science, Aachen, Germany, (2)RWTH Aachen University, Institute for Applied Geophysics and Geothermal Energy, Aachen, Germany, (3)University of Hamburg, Institute of Geophysics, Hamburg, Germany
 
Modeling Northern Hemispheric ice sheet dynamics, sea level change and solid Earth deformation through the last glacial cycle. (582326)
Holly Kyeore Han1, Natalya A Gomez1, David Pollard2 and Rob DeConto3, (1)McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, (2)Pennsylvania State University, Earth and Environmental Systems Institute, University Park, PA, United States, (3)University of Massachusetts Amherst, Amherst, MA, United States
 
The Influence of Solid Earth Properties on the Deglacial Evolution of the Greenland Ice Sheet (Invited) (585934)
Glenn A. Milne and Francois P.H. Lapointe, University of Ottawa, Earth and Environmental Sciences, Ottawa, ON, Canada
 
Constraint of GIA signal and uncertainty contributions to vertical motion and sea level change in northern Europe and Scandinavia (595121)
Karen Simon, Royal Netherlands Institute for Sea Research, Yerseke, Netherlands and Riccardo Riva, Delft University of Technology, Geoscience and Remote Sensing, Delft, Netherlands
 
Sensitivity of Coupled Solid Earth - Ice Sheet Models to Coupling Timescale and Earth Rheology (602075)
Cameron Book1, Matthew J Hoffman1 and Samuel Benjamin Kachuck2, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Cornell University, Ithaca, NY, United States
 
Antarctica slowdown from solid-Earth and sea-level negative feedbacks. (608486)
Eric Y Larour1, Helene L Seroussi2, Surendra Adhikari3, Erik Roman Ivins4, Lambert Caron1, Mathieu Morlighem5 and Nicole Schlegel2, (1)Jet Propulsion Laboratory, Pasadena, CA, United States, (2)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (3)California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA, United States, (4)JPL/Caltech, Pasadena, CA, United States, (5)University of California - Irvine, Irvine, CA, United States
 
Investigating the Bias in GPS-derived 1-D Viscosity Models due to Antarctica’s Complex 3-D Mantle Structure (615130)
Evelyn M Powell1, Konstantin Latychev1, Natalya A Gomez2, Mark J Hoggard1 and Jerry X Mitrovica1, (1)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, (2)McGill University, Earth and Planetary Sciences, Montreal, QC, Canada
 
New constraints on the pre-glacial and glacial uplift and incision history of the central Transantarctic Mountains using multiple low-temperature thermochronometers (629777)
Stuart N Thomson1, Peter W Reiners2, John He2, Sidney R Hemming3 and Kathy Licht4, (1)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (2)University of Arizona, Tucson, AZ, United States, (3)Lamont-Doherty Earth Observ, Palisades, NY, United States, (4)IUPUI, Earth Sciences, Indianapolis, IN, United States
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