C52A:
Advances in Geophysical Exploration of Ice Sheets and Ice Shelves, and Strategies for Data-Model Fusion I

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Session ID#: 13524

Session Description:
Recent years have seen increasingly diverse geophysical methods being adopted to study ice sheets and ice shelves, because they are well suited to acquiring much-needed data in environments that are hazardous to access (e.g., calving fronts) or inaccessible (e.g., subsurface and bed). Examples include radar-sounding investigations of ice structure and history; electrical and seismic identification of structural weaknesses; and use of spaceborne sensors to probe the subsurface structure of extraterrestrial ice masses. These data provide crucial constraints for modelling the future of ice masses such as Antarctica and Greenland; while modelling in turn is critical for identifying future data requirements. This session will bring together and identify high-impact advances in the acquisition and application of cryospheric geophysical data. By promoting knowledge exchange of such advances across the cryospheric community, we can move toward larger-scale geophysical investigation of ice sheets, fused with numerical-modelling strategies, to elucidate their past, present and future.
Primary Convener:  Robert G. Bingham, University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom
Conveners:  Joseph A MacGregor, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Neil Ross, Newcastle University, Tyne and Wear, United Kingdom
Chairs:  Joseph A MacGregor, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Robert G. Bingham, University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom
OSPA Liaison:  Robert G. Bingham, University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom

Cross-Listed:
  • GC - Global Environmental Change
  • NS - Near Surface Geophysics
Index Terms:

0726 Ice sheets [CRYOSPHERE]
0758 Remote sensing [CRYOSPHERE]
0798 Modeling [CRYOSPHERE]
1621 Cryospheric change [GLOBAL CHANGE]

Abstracts Submitted to this Session:

Airborne geophysical surveys of unexplored regions of Antarctica – results of the ESA PolarGap campaign (Invited) (175975)
Rene Forsberg1, Arne V Olesen2, Fausto Ferraccioli3, Tom A Jordan3 and Kenichi Matsuoka4, (1)DTU Space, Department of Geodesy and Earth Observation, Kgs. Lyngby, Denmark, (2)DTU Space, Lyngby, Denmark, (3)British Antarctic Survey, Cambridge, United Kingdom, (4)Norwegian Polar Institute, Glaciology and Geology, Tromsø, Norway
New Map of Antarctic-wide Heat Flux Variation (174481)
Yasmina M Martos, University of MaryLand, College Park, United States, Manuel Catalan, Formerly at the Royal Observatory of the Spanish Navy, Geophysics, San Fernando, Spain and Tom A Jordan, British Antarctic Survey, Cambridge, United Kingdom
Cross-Instrument Radar Sounding Synthesis: Characterizing Basal Conditions Across the Amundsen Sea Embayment (119206)
Dustin M Schroeder, Stanford University, Department of Electrical Engineering, Stanford, United States, John Drysdale Paden, Center for Remote Sensing of Ice Sheets (CReSIS), University of Kansas, Lawrence, United States, Hugh F J Corr, NERC British Antarctic Survey, Cambridge, United Kingdom, Donald D Blankenship, Institute for Geophysics, Austin, TX, United States and Andrew Michael Hilger, Stanford University, Stanford, CA, United States
The Inside Scoop: Intermodel comparison of englacial layers in the central West Antarctic Ice Sheet and how simulations compare to the real deal (190120)
Gail Muldoon1, Charles S Jackson2, Duncan A Young3 and Donald D Blankenship3, (1)University of Texas, Institute for Geophysics, Austin, TX, United States, (2)University of Texas at Austin, Austin, TX, United States, (3)University of Texas, Institute for Geophysics, Austin, United States
Irregular Layering at mid-depths in two Antarctic Ice Cores (142696)
Tyler J Fudge, University of Washington, Earth and Space Sciences, Seattle, United States, Kendrick Cashman Taylor, Desert Research Institute Reno, Reno, NV, United States, Edwin D Waddington, University of Washington, Seattle, WA, United States, Howard Conway, University of Washington Seattle Campus, Seattle, WA, United States, Joan J Fitzpatrick, USGS Central Region Offices Denver, Denver, CO, United States, Ryan C Bay, University of California, Berkeley, United States and John M Fegyveresi, USACE-ERDC CRREL, Vicksburg, MS, United States
East-Antarctic outlet-glacier susceptibility from a data-driven ice-sheet/ice-shelf modelling approach (Invited) (157901)
Frank Pattyn, Lionel Favier, Reinhard Drews, Sophie Berger, Sainan Sun and Brice Van Liefferinge, Université Libre de Bruxelles, Brussel, Belgium
Changing summer basal traction of the Greenland Ice Sheet at high temporal resolution using inversion of GPS-derived surface speed (179589)
Matthew J Hoffman, Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics, Los Alamos, NM, United States, Mauro Perego, Sandia National Laboratories, Albuquerque, United States, Lauren C Andrews, NASA Goddard Space Flight Center, Global Modeling & Assimilation Office, Greenbelt, MD, United States, Tom Neumann, NASA Goddard Space Flight Ctr., Greenbelt, United States and Stephen F Price, Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics, Los Alamos, United States
Distinct Subglacial Drainage Patterns Revealed in High-Resolution Mapping of Basal Radar Reflectivity across Greenland (187340)
Winnie Chu, Stanford University, Department of Geophysics, Stanford, CA, United States, Dustin M Schroeder, Stanford University, Department of Electrical Engineering, Stanford, United States, Helene L Seroussi, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, Timothy T Creyts, Columbia University-LDEO, Palisades, NY, United States, Steven John Palmer, University of Exeter, Exeter, United Kingdom and Robin Elizabeth Bell, Lamont-Doherty Earth Observatory, Palisades, NY, United States

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