C005:
Antarctic Ice Shelves: surface and basal processes, instability and breakup





Session ID#: 24431

Session Description:
In Antarctica, 44% of the coastline is fringed by ice shelves extending 1.5 million km2. Ice shelves buttress flow from grounded ice into the sea, and so are an important control on ice sheet mass balance. As recent shelf loss on the Antarctic Peninsula has resulted in outlet glacier speed-up and sea level rise, understanding the processes leading to ice shelf instability and break-up is of huge societal importance. Changes in atmosphere/ocean circulation and air/water temperature are implicated in recent collapse events through their effects on surface/basal melting respectively. The precise mechanisms involved remain elusive, but it is thought that fracture mechanics may play a role. Here we seek contributions from all geoscientists investigating processes occurring above, on, within and below ice shelves through fieldwork, remote-sensing and modelling. Our aim is to improve knowledge about past and current ice shelf dynamics and stability, and elucidate potential future ice shelf states.
Primary Convener:  Amber Leeson, University of Lancaster, Lancaster Environment Centre / Data Science institute, Lancaster, United Kingdom
Conveners:  Ian Willis1, Alison F Banwell1 and Daniel Goldberg2, (1)University of Cambridge, Scott Polar Research Institute, Cambridge, United Kingdom(2)University of Edinburgh, School of GeoSciences, Edinburgh, EH9, United Kingdom
Index Terms:

0728 Ice shelves [CRYOSPHERE]
0746 Lakes [CRYOSPHERE]
0762 Mass balance 0764 Energy balance [CRYOSPHERE]
0774 Dynamics [CRYOSPHERE]

Abstracts Submitted to this Session:

Carolyn Branecky Begeman, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, Slawek M Tulaczyk, Univ California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, Oliver Marsh, University of California San Diego, La Jolla, CA, United States, Jill Mikucki, University of Tennessee, Microbiology, Knoxville, TN, United States, Timothy P Stanton, Naval Postgraduate School, Oceanography, Monterey, CA, United States, Timothy O Hodson, Illinois State Water Survey, Champaign, IL, United States, Matthew R Siegfried, Stanford University, Department of Geophysics, Stanford, CA, United States, Ross D Powell, Northern Illinois Univ., Geology and Environmental Geosciences, De Kalb, IL, United States, Knut A Christianson, University of Washington Seattle Campus, Earth and Space Sciences, Seattle, WA, United States and Matt A King, University of Tasmania, Surveying and Spatial Sciences, School of Land and Food, Hobart, TAS, Australia
Zhao Chen1, Peter D Bromirski1, Peter Gerstoft1, Ralph A Stephen2, Douglas Wiens3, Richard C Aster4 and Andrew Nyblade5, (1)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (3)Washington University in St Louis, St. Louis, MO, United States, (4)Colorado State University, Geosciences Department, Fort Collins, CO, United States, (5)Pennsylvania State University, Department of Geosciences, University Park, PA, United States
Sammie Claire Buzzard1, Daniel Lee Feltham1 and Daniela Flocco2, (1)University of Reading, Centre for Polar Observation and Modelling, Department of Meteorology, Reading, RG6, United Kingdom, (2)University of Reading, Reading, RG6, United Kingdom
Karen E Alley1, Ted Scambos2, Robert S Anderson3, Harihar Rajaram4, Allen Pope5 and Terry Haran5, (1)CIRES University of Colorado, Boulder, CO, United States, (2)National Snow and Ice Data Center, University of Colorado, Boulder, CO, United States, (3)Department of Geological Sciences and INSTAAR, Boulder, United States, (4)Univ Colorado, Boulder, CO, United States, (5)National Snow and Ice Data Center, Boulder, CO, United States
Angelika Humbert1, Keith W Nicholls2, Hugh F J Corr2, Daniel Steinhage3, Craig Stewart4 and Ole Zeising5, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Glaciology, Bremerhaven, Germany, (2)NERC British Antarctic Survey, Cambridge, United Kingdom, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (4)University of Cambridge, Cambridge, United Kingdom, (5)University of Hamburg, Geophysics, Hamburg, Germany
Ian Willis1, Emily Haggard1, Corinne Laura Benedek2, Douglas R MacAyeal3 and Alison F Banwell1, (1)University of Cambridge, Scott Polar Research Institute, Cambridge, United Kingdom, (2)University of Cambridge, Cambridge, United Kingdom, (3)International Glaciological Society, Cambridge, United Kingdom
Bryn P Hubbard1, David Ashmore1, Suzanne Louise Bevan2, Adam D Booth3, Paul Holland4, Daniela Jansen5, Peter Kuipers Munneke6, Bernd Kulessa2, Adrian J Luckman2, Heidi Sevestre7 and Martin O'Leary2, (1)Aberystwyth University, Aberystwyth, United Kingdom, (2)Swansea University, Glaciology Group, Swansea, United Kingdom, (3)Los Angeles, CA, United States, (4)British Antarctic Survey, Cambridge, United Kingdom, (5)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (6)Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands, (7)University of St Andrews, St Andrews, United Kingdom
Magnus Mar Magnusson and Douglas R MacAyeal, International Glaciological Society, Cambridge, United Kingdom
Adam D Booth1, Heidi Sevestre2, Bernd Kulessa3, Suzanne Louise Bevan3, Bryn P Hubbard4, Adrian J Luckman3, Peter Kuipers Munneke5, Sammie Claire Buzzard6, David W Ashmore7 and Martin O'Leary3, (1)University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, (2)University of St Andrews, St Andrews, United Kingdom, (3)Swansea University, Glaciology Group, Swansea, United Kingdom, (4)Aberystwyth University, Department of Geography and Earth Sciences, Aberystwyth, United Kingdom, (5)Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands, (6)University of Reading, Reading, RG6, United Kingdom, (7)University of Liverpool, School of Environmental Sciences, Liverpool, United Kingdom
Grant John Macdonald, University of Chicago, Department of Geophysical Sciences, Chicago, IL, United States, Alison F Banwell, University of Cambridge, Scott Polar Research Institute, Cambridge, United Kingdom, Ian Willis, Scott Polar Research Institute, Cambridge, United Kingdom, David P Mayer, United States Geological Survey, Astrogeology Science Center, Flagstaff, AZ, United States, Emily K Hansen, University of Chicago, Chicago, IL, United States and Douglas R MacAyeal, International Glaciological Society, Cambridge, United Kingdom
Marin J Klinger1, Terence M Haran1, Ted Scambos2, Jennifer A Bohlander3 and Karen E Alley1, (1)CIRES University of Colorado, National Snow and Ice Data Center, Boulder, CO, United States, (2)National Snow and Ice Data Center, University of Colorado, Boulder, CO, United States, (3)Polar Science Consulting, Cary, NC, United States
Laura Ray1, Madeleine Jordan1, Steven A Arcone2, Lynn M Kaluzienski3, Peter Ortquist Koons4, James Lever5, Benjamin Walker1 and Gordon S Hamilton6, (1)Dartmouth College, Hanover, NH, United States, (2)U.S. Army Cold Regions Research and Engineering Laboratory, Hanover, NH, United States, (3)Emory University, Atlanta, United States, (4)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States, (5)US Army Engineer Research and Developmen, Hanover, NH, United States, (6)University of Maine, Orono, ME, United States
Cyril Grima1, Inka Koch2, Jamin Stevens Greenbaum3, Krista M Soderlund1, Donald D Blankenship1, Duncan A Young1 and Sean Fitzsimons4, (1)Institute for Geophysics, Austin, TX, United States, (2)International Center for Integrated Mountain Development, Kathmandu, Nepal, (3)University of Texas at Austin, University of Texas Institute for Geophysics, Austin, TX, United States, (4)University of Otago, Dunedin, New Zealand
Frazer Christie1, Robert G. Bingham1, Noel Gourmelen1, Eric J. Steig2, Rosie Bisset1, Kate Snow1, Daniel Goldberg1 and Simon FB Tett3, (1)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom, (2)University of Washington, Earth and Space Sciences, Seattle, WA, United States, (3)University of Edinburgh, School of GeoSciences, Edinburgh, EH9, United Kingdom
Noel Gourmelen1, Daniel Goldberg2, Kate Snow1, Sian F Henley1, Robert G. Bingham1, Satoshi Kimura3, Anna Hogg4, Andrew Shepherd4, Jeremie Mouginot5, Jan Lenaerts6, Stefan Ligtenberg7 and Willem Jan Van De Berg7, (1)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom, (2)University of Edinburgh, School of GeoSciences, Edinburgh, EH9, United Kingdom, (3)British Antarctic Survey, Cambridge, United Kingdom, (4)CPOM, University of Leeds, Leeds, United Kingdom, (5)UC, Irvine, Irvine, CA, United States, (6)University of Colorado at Boulder, Boulder, CO, United States, (7)University Utrecht / IMAU, Utrecht, Netherlands
Alexander Robel1, Douglas R MacAyeal2, Victor C Tsai1 and David E Shean3, (1)California Institute of Technology, Pasadena, CA, United States, (2)University of Chicago, Chicago, IL, United States, (3)University of Washington, Applied Physics Laboratory, Seattle, WA, United States
Christopher Thomas MacMackin and Andrew Wells, University of Oxford, Oxford, United Kingdom
Peter L Wray1, Christine F Dow1, Derek Mueller2, Won Sang Lee3, Laura Lindzey4, Jamin Stevens Greenbaum5 and Donald D Blankenship5, (1)University of Waterloo, Waterloo, ON, Canada, (2)Carleton University, Ottawa, ON, Canada, (3)Korea Polar Research Institute, Incheon, South Korea, (4)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (5)University of Texas at Austin, University of Texas Institute for Geophysics, Austin, TX, United States
Zoe Courville, CRREL, Hanover, NH, United States, Seth W Campbell, U.S. Army Cold Regions Research and Engineering Laboratory, Hanover, NH, United States, Samantha Noelle Sinclair, University of New Hampshire Main Campus, Earth Sciences, Durham, NH, United States and Joel Wilner, Middlebury College, Middlebury, VT 05753, Middlebury, VT, United States
Christine F Dow1, Won Sang Lee2, Jamin Stevens Greenbaum3, Chad A Greene4, Donald D Blankenship4, Kristin Poinar5, Alex Forrest6, Duncan A Young4 and Christopher J Zappa7, (1)University of Waterloo, Waterloo, ON, Canada, (2)Korea Polar Research Institute, Incheon, South Korea, (3)University of Texas at Austin, University of Texas Institute for Geophysics, Austin, TX, United States, (4)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (5)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (6)University of California Davis, Tahoe Environmental research Center, Davis, CA, United States, (7)Lamont-Doherty Earth Observatory, Palisades, NY, United States
Peter Kuipers Munneke1, Adrian J Luckman2, Suzanne Louise Bevan2, Ella Gilbert3, Paul Smeets1, Michiel R van den Broeke1, Wenshan Wang4, Charles S Zender5, David W Ashmore6, Bryn P Hubbard7, Andrew Orr3 and John King3, (1)Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands, (2)Swansea University, Glaciology Group, Swansea, United Kingdom, (3)NERC British Antarctic Survey, Cambridge, United Kingdom, (4)University of California Irvine, Irvine, CA, United States, (5)Univ California Irvine, Irvine, CA, United States, (6)University of Liverpool, School of Environmental Sciences, Liverpool, United Kingdom, (7)Aberystwyth University, Department of Geography and Earth Sciences, Aberystwyth, United Kingdom
Rajashree Datta1, Marco Tedesco2, Cecile Agosta3, Xavier Fettweis3, Peter Kuipers Munneke4 and Michiel R van den Broeke4, (1)CUNY Graduate Center, New York, NY, United States, (2)Lamont Doherty Earth Observatory, Columbia University, New York, NY, United States, (3)University of Liège, Geography, Liège, Belgium, (4)Institute for Marine and Atmospheric Research Utrecht, Utrecht, Netherlands
Andrew Carl Johnson, University of Alaska Fairbanks, Fairbanks, AK, United States, Mark A Fahnestock, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States and Regine Hock, Univ of AK-Geophysical Inst, Fairbanks, AK, United States
Steven A Arcone, US Army Engineer Research and Development, Signature Physics Branch, Hanover, NH, United States, Laura Ray, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, James Lever, US Army Engineer Research and Developmen, Hanover, NH, United States, Peter Ortquist Koons, University of Maine, School of Earth and Climate Sciences, Orono, ME, United States and Lynn M Kaluzienski, Emory University, Atlanta, United States
Adam J Campbell, University of Otago, School of Surveying, Dunedin, New Zealand, Christina L Hulbe, University of Otago, School of Surveying (Dean), Dunedin, New Zealand and Choon-Ki Lee, KOPRI Korea Polar Research Institute, Incheon, South Korea
Sue Cook1, Christopher S Watson2, Ben Galton-Fenzi1, Leo E Peters3 and Richard Coleman4, (1)Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart Tasmania 7001, Australia, (2)University of Tasmania, School of Land and Food, Hobart, Australia, (3)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia, (4)University of Tasmania, Hobart, Australia
Jonathan Kingslake1, Robin Elizabeth Bell1, Alison F Banwell2, Alexandra Boghosian1, Julian Spergel1 and Luke D Trusel3, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)University of Cambridge, Scott Polar Research Institute, Cambridge, United Kingdom, (3)Clark Labs, Worcester, MA, United States
Sebastian Goeller, Potsdam, Germany and Ralph Timmermann, AWI, Bremerhaven, Germany
Indrani Das1, Robin Elizabeth Bell1, Kirsty J Tinto2, Nicholas Frearson2, Jonathan Kingslake1, Laurence Padman3, Christine S Siddoway4 and Helen Amanda Fricker5, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)Columbia University, Palisades, NY, United States, (3)Earth & Space Research, Corvallis, OR, United States, (4)Colorado College, Colorado Springs, CO, United States, (5)Scripps Institution of Oceanography, La Jolla, CA, United States
Bernd Scheuchl1, Jeremie Mouginot2, Eric J Rignot3, David Small4, Ala Khazendar3, Helene L Seroussi3 and Josef M Kellndorfer5, (1)University of California Irvine, Irvine, CA, United States, (2)UC, Irvine, Irvine, CA, United States, (3)Jet Propulsion Laboratory, Pasadena, CA, United States, (4)University of Zurich, Zurich, Switzerland, (5)Earth Big Data LLC, Woods Hole, MA, United States
Sebastian Rosier, NERC British Antarctic Survey, Cambridge, United Kingdom and Gudmundur Hilmar Gudmundsson, NERC British Antarctic Survey, Cambridge, CB3, United Kingdom
Kirsty J Tinto1, Christine S Siddoway2, Laurence Padman3, Helen Amanda Fricker4, Indrani Das5, David Felton Porter6, Scott R Springer7, Matthew R Siegfried8, Fabio Caratori Tontini9, Robin Elizabeth Bell5 and ROSETTA-Ice team, (1)Columbia University, Palisades, NY, United States, (2)Colorado College, Colorado Springs, CO, United States, (3)Earth & Space Research, Corvallis, OR, United States, (4)Scripps Institution of Oceanography, La Jolla, CA, United States, (5)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (6)Columbia University of New York, Palisades, NY, United States, (7)Earth and Space Research, Seattle, WA, United States, (8)Stanford University, Geophysics, Stanford, CA, United States, (9)GNS Science, Lower Hutt, New Zealand
Roiy Sayag, Ben-Gurion University of the Negev Midreshet, Sde Boker, Israel and Grae Worster, University of Cambridge, Cambridge, United Kingdom
Matthew J Hoffman1, Jeremy Garmeson Fyke1, Stephen F Price1, Xylar Asay-Davis1 and Mauro Perego2, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Sandia National Laboratories, Albuquerque, NM, United States
Lynn M Kaluzienski1, Peter Ortquist Koons2, Ellyn M Enderlin3, Zoe Courville4, Seth W Campbell5, Steven Arcone5, Madeleine Jordan6 and Laura Ray7, (1)University of Maine, Orono, ME, United States, (2)University of Maine, School of Earth and Climate Sciences, Orono, ME, United States, (3)Climate Change Institute, Orono, ME, United States, (4)CRREL, Hanover, NH, United States, (5)U.S. Army Cold Regions Research and Engineering Laboratory, Hanover, NH, United States, (6)Dartmouth College, Hanover, NH, United States, (7)Dartmouth College, Thayer School of Engineering, Hanover, NH, United States
Ted A Scambos and Marin Klinger, National Snow and Ice Data Center, Boulder, CO, United States
Arnaud Charolais, University of California Irvine, Earth System Science, Irvine, CA, United States, Eric J Rignot, Jet Propulsion Laboratory, Pasadena, CA, United States, Pietro Milillo, California Institute of Technology, Pasadena, CA, United States, Bernd Scheuchl, University of California Irvine, Irvine, CA, United States and Jeremie Mouginot, UC, Irvine, Irvine, CA, United States
Alexander Huth, Applied Physics Laboratory University of Washington, Seattle, WA, United States and Benjamin Eaton Smith, Applied Physics Lab, University of Washington, Seattle, WA, United States

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