C053
Ongoing Evolution of the Climate–Ice–Ocean System of the Antarctic Coast and Grounding Zone I

Tuesday, 15 December 2020: 04:00-05:00
Virtual
Primary Convener:  Ted A Scambos, National Snow and Ice Data Center, Boulder, CO, United States
Conveners:  Xiaojun Yuan, Lamont-Doherty Earth Observ, Palisades, NY, United States, Julia S Wellner, University of Houston, Houston, TX, United States and Sukyoung Yun, Korea Polar Research Institute, Unit of Ice Sheet and Sea Level Changes, Incheon, South Korea
Primary Liaison:  Kirsty J Tinto, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Chairs:  Ted A Scambos, University of Colorado, Boulder, Boulder, CO, United States, Kirsty J Tinto, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States and Sukyoung Yun, Korea Polar Research Institute, Unit of Ice Sheet and Sea Level Changes, Incheon, South Korea
OSPA Liaison:  Xiaojun Yuan, Lamont-Doherty Earth Observ, Palisades, NY, United States
04:00
Complex bathymetry beneath Thwaites and Dotson Ice Shelves revealed by active-source seismic surveys (699462)
Atsuhiro Muto1, Christian Thomas Wild2, Karen E Alley3, Martin Truffer4, Ted A Scambos5, Anna Wahlin6, Bruce Wallin7, Alex John Roccaro8, Dale Pomraning4 and Karen J. Heywood9, (1)Temple University, Department of Earth and Environmental Science, Philadelphia, PA, United States, (2)Oregon State University, CEOAS, Corvallis, United States, (3)College of Wooster, Wooster, OH, United States, (4)University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, (5)University of Colorado, Boulder, Boulder, CO, United States, (6)University of Gothenburg, Gothenburg, Sweden, (7)National Snow and Ice Data Center, Boulder, CO, United States, (8)Temple University, Philadelphia, PA, United States, (9)University of East Anglia, Norwich, United Kingdom
04:04
Surface pressure and winds in the Amundsen Sea Embayment during the 20th century (714666)
Gemma Kim O'Connor1, Eric J. Steig1 and Gregory J. Hakim2, (1)University of Washington, Earth and Space Sciences, Seattle, WA, United States, (2)University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States
04:08
Observations and Impact of Atmospheric River-Driven Extreme Precipitation over Thwaites Glacier (740043)
Michelle Laura Maclennan1, Jan Lenaerts1, Christine A Shields2 and Jonathan Wille3, (1)University of Colorado Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States, (2)NCAR, Boulder, CO, United States, (3)University Grenoble Alpes, IGE, Saint Martin d'Hères, France
04:12
Rapid basal melting and destabilization of the Dotson Ice Shelf, Antarctica (760657)
Christian Wild, Oregon State University, Corvallis, OR, United States, Karen Alley, University of Manitoba, Winnipeg, Canada, Gabriela Celeste Collao-Barrios, University of Colorado at Boulder, Boulder, United States, Elizabeth Hebel, University of Colorado, Boulder, United States, Atsuhiro Muto, The Pennsylvania State University, University Park, PA, United States, Ted A Scambos, University of Colorado, Boulder, Boulder, CO, United States, Martin Truffer, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States and Erin Pettit, Oregon State University, Corvallis, United States
04:16
Two decades of dynamic changes on the Thwaites Eastern Ice Shelf (743024)
Karen E Alley, University of Manitoba, Environment and Geography, Winnipeg, MB, Canada, Christian Thomas Wild, Oregon State University, Corvalis, OR, United States, Luc Girod, University of Oslo, Department of Geosciences, Oslo, Norway, Adrian J Luckman, Swansea University, Glaciology Group, Swansea, United Kingdom, Sarah F Child, University of Colorado at Boulder, Boulder, CO, United States, Cyrus Hulen, College of Wooster, Wooster, OH, United States, Erin Pettit, Oregon State, Corvallis, Oregon, United States, Atsuhiro Muto, Temple University, Department of Earth and Environmental Science, Philadelphia, PA, United States, Ted A Scambos, University of Colorado, Boulder, Boulder, CO, United States, Martin Truffer, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States, Bruce Wallin, National Snow and Ice Data Center, Boulder, CO, United States and Marin J Klinger, University of Colorado, Boulder, National Snow and Ice Data Center, Boulder, CO, United States
04:20
In-situ observations of ice dynamics on the pinning point of Thwaites Eastern Ice Shelf, Antarctica (720682)
Choon-Ki Lee, Korea Polar Research Institute, Incheon, Korea, Republic of (South), Won Sang Lee, Korea Polar Research Institute, Unit of Ice Sheet and Sea Level Changes, Incheon, South Korea, Jin-Seok Kim, Korea Polar Research Institute, Incheon, South Korea, Xianwei Wang, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates, Lucas Beem, Univ California Santa Cruz, Santa Cruz, CA, United States, Keith W Nicholls, British Antarctic Survey, Cambridge, United Kingdom and David M Holland, New York University Abu Dhabi, Center for Global Sea Level Change, Abu Dhabi, United Arab Emirates
04:24
Future mass loss of Thwaites Glacier, West Antarctica and its sea level contribution (768304)
Emilia Kyung Jin1, In-Woo Park2 and Won Sang Lee Dr.1, (1)Korea Polar Research Institute, Incheon, South Korea, (2)Seoul National University, Seoul, Korea, Republic of (South)
04:28
High-fidelity modeling of marine ice-cliff instability: Modes of collapse, mélange breaks and a calving-rate law (Invited) (679688)
Anna J Crawford1, Doug Benn1, Jan Anders Åström2, Joe Todd3 and Thomas Zwinger4, (1)University of St Andrews, St Andrews, KY16, United Kingdom, (2)CSC: IT Center for Science, Espoo, Finland, (3)University of St Andrews, St Andrews, United Kingdom, (4)CSC - IT Center for Science, Espoo, Finland
04:32
Discussion
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