C027
Observations and Models of Ice Sheet-Solid Earth-Sea Level Interactions toward Constraining Modern and Future Sea-level Changes

Session ID#: 161502

Session Description:
Mass changes in ice sheets cause perturbations in the Earth’s solid surface and gravitational and rotational potential, generating geographically variable patterns of sea-level change. Ice-sheet evolution is in turn influenced by changes in bedrock and ice-surface elevation/slope, as well as changes in the local ocean depth. Understanding and quantifying feedbacks between ice sheets, the solid Earth and sea levels is critical to constraining ice-sheet contributions to future sea-level rise. 

We welcome abstracts that focus on observations and modeling of ice-sheet, solid-Earth and sea-level processes and their interactions across all timescales, with a specific emphasis on contributions that aim to improve monitoring, diagnosing, and/or projecting future sea-level change and associated hazards. This covers a wide range of methods including, but not limited to, coupled ice sheet-sea level modeling, advanced modeling of Earth’s structure (e.g., laterally varying mantle and transient rheology), statistical modeling, machine learning applications, and GPS and gravimetry data analysis.

Index Terms:

0720 Glaciers [CRYOSPHERE]
0726 Ice sheets [CRYOSPHERE]
0794 Instruments and techniques [CRYOSPHERE]
0798 Modeling [CRYOSPHERE]

Primary Convener:  Holly Kyeore Han, Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics, Los Alamos, NM, United States
Conveners:  Surendra Adhikari, California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA, United States, Sophie Coulson, Los Alamos National Laboratory, Los Alamos, NM, United States and Daniel M. Gilford, Climate Central, Princeton, NJ, United States
 
Geothermal Heat Flux Estimation Across Antarctica Using Higher Resolution Seismic Proxies (1064059)
Shane Zhang and Michael H Ritzwoller, University of Colorado Boulder, Department of Physics, Boulder, CO, United States
 
Solid earth versus climatic controls on Holocene grounding line migration of the Siple Coast, Antarctica (1070463)
Daniel Lowry, GNS Science, Lower Hutt, New Zealand, Stefan Jendersie, Antarctic Research Center, VUW, Wellington, New Zealand and Nicholas R Golledge, Victoria University of Wellington, Antarctic Research Centre, Wellington, New Zealand
 
Monthly Sea-Level Fingerprints from 1992-Present, Utilising ESA CCI Essential Climate Variables in an Ensemble Modelling Framework (1085483)
Stephen Chuter, University of Bristol, School of Geographical Sciences, Bristol, BS8, United Kingdom, Andrew Zammit-Mangion, School of Mathematics and Applied Statistics and Securing Antarctica’s Environmental Future, University of Wollongong, Wollongong, NSW, Australia, Jonathan L Bamber, University of Bristol, School of Geographical Sciences, Bristol, United Kingdom and Jérôme Benveniste, European Space Agency (ESA-ESRIN), Earth Observation Programmes, Frascati, Italy
 
Refining Estimates of Pliocene Sea-Level Change and Geographic Source of Ice Melt: An Ice Sheet-Solid Earth-Sea Level Model Approach (1096810)
Meghan King, Oregon State University, Corvallis, OR, United States and Jessica R Creveling, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Can a 3D GIA Model Explain GPS Uplift Rates in the Southern Antarctic Peninsula? (Invited) (1104545)
Grace A Nield, Durham University, Durham, United Kingdom, Pippa Whitehouse, Durham University, Department of Geography, Durham, United Kingdom, Achraf Koulali, Newcastle University, School of Engineering, Newcastle, United Kingdom, Peter J Clarke, School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom, Michael Bentley, University of Durham, Durham, United Kingdom, John Paul O’Donnell, Geological Survey of South Australia, Adelaide, Australia and Alex Brisbourne, NERC British Antarctic Survey, Cambridge, United Kingdom
 
A deep-learning based glacial isostatic adjustment emulator (1110573)
Yucheng Lin1, Pippa Whitehouse1 and Andrew P Valentine2, (1)Durham University, Department of Geography, Durham, United Kingdom, (2)University of Durham, Department of Earth Sciences, Durham, United Kingdom
 
Crustal composition determined by seismic properties in Antarctica and its implication on the crustal thermal structure (1116947)
Siyuan Sui, Stony Brook University, Department of Geosciences, Stony Brook, New York, United States and Weisen Shen, Stony Brook University, Department of Geosciences, Stony Brook, United States
 
Quantifying the Sensitivity of Glacial Isostatic Adjustment in Northwestern Europe During the Last Interglacial to Solid Earth and Ice-sheets Uncertainty (1119497)
Oliver Pollard1, Natasha Barlow2, Lauren J Gregoire2 and Natalya A Gomez3, (1)University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, (2)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (3)McGill University, Earth & Planetary Sciences, Montreal, QC, Canada
 
Impact of Low Mantle Viscosity and Thin Lithosphere on Retreat of Thwaites Glacier, Antarctica, Over the Next 500 Years (1120262)
Matthew J Hoffman1, Cameron Book2, Samuel Benjamin Kachuck3, Trevor Hillebrand4, Stephen F Price2, Mauro Perego5 and Jeremy N Bassis6, (1)Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics, Los Alamos, United States, (2)Los Alamos National Laboratory, Los Alamos, NM, United States, (3)Cornell University, Ithaca, United States, (4)Los Alamos National Laboratory, Los Alamos, United States, (5)Sandia National Laboratories, Albuquerque, United States, (6)University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, United States
 
A Constrained History for the Cenozoic Variations of the Earth’s Dynamical Ellipticity (1144304)
Mohammad Farhat, Jacques Laskar and Gwenaël Boué, IMCCE/Observatoire de Paris, Paris, France
 
Back to the future: What evolution of Holocene grounding lines in the Amundsen Sea Embayment tells us about Pine Island’s future (Invited) (1145509)
Samuel Benjamin Kachuck, University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, Ryan Venturelli, Colorado School of Mines, Department of Geology and Geological Engineering, Geochemistry Program, Golden, CO, United States, Jeremy N Bassis, University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, United States, Daniel F Martin, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and Stephen F Price, Los Alamos National Laboratory, Los Alamos, NM, United States
 
Spatial and temporal variability in twenty-first century sea-level changes (1156711)
Jeremy Roffman1, Natalya A Gomez2, Maryam Yousefi3, Holly Kyeore Han1 and Sophie Nowicki4, (1)McGill University, Montreal, QC, Canada, (2)McGill University, Earth & Planetary Sciences, Montreal, QC, Canada, (3)University of Ottawa, Earth and Environmental Sciences, Ottawa, ON, Canada, (4)University at Buffalo, Department of Geology, Buffalo, United States
 
Sea level and dynamic topography change since the mid-Pliocene: Leveraging a global dataset of 12 wavecut scarps (1158066)
Andrew Hollyday1, Jacqueline Austermann2, Alessio Rovere3, Mark J. Hoggard4, Fred Richards5, Andrew Lloyd1 and Maureen E Raymo2, (1)Columbia University, Lamont-Doherty Earth Observatory, New York, NY, United States, (2)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (3)MARUM - University of Bremen, Bremen, Germany, (4)Australian National University, Research School of Earth Sciences, Canberra, Australia, (5)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom
 
New sea-level projections accounting for tight spatio-temporal covariances in the barystatic contributors. (1170035)
Eric Y Larour, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Lambert Caron, Jet Propulsion Laboratory, Pasadena, CA, United States, Erik Roman Ivins, JPL/Caltech, Pasadena, CA, United States and Surendra Adhikari, California Institute of Technology, Jet Propulsion Laboratory, Pasadena, CA, United States
 
Reconcile Mantle Viscosity Structure Inferred from Using ANU and ICE6G Ice Models and Multiple Relative Sea Level Datasets (1174882)
Kaixuan Kang and Shijie Zhong, University of Colorado at Boulder, Department of Physics, Boulder, CO, United States
 
Refining Estimates of Antarctic Geothermal Heat Flow Using Seismological Constraints on Crustal Composition and Lithospheric Thermal Structure (1178233)
James Hazzard1, Fred Richards2 and Gareth G Roberts2, (1)Imperial College London, Department of Earth Science and Engineering, London, SW7, United Kingdom, (2)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom
 
The impact of glacial isostatic adjustment on Antarctic ice loss and global sea levels in the coming centuries (1181217)
Natalya A Gomez, McGill University, Earth & Planetary Sciences, Montreal, QC, Canada, Jeannette Xiu Wen Wan, McGill University, Montreal, Canada, Maryam Yousefi, McGill University, Montreal, QC, Canada, David Pollard, Pennsylvania State University, Earth and Environmental Systems Institute, State College, United States, Rob DeConto, University of Massachusetts Amherst, Amherst, MA, United States, Konstantin Latychev, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, Ngai Ham Chan, McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, Andrew Jason Lloyd, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Douglas Wiens, Washington University in St. Louis, St. Louis, MO, United States, Andrew Nyblade, Pennsylvania State University, Department of Geosciences, University Park, United States and Terry J Wilson, Ohio State University, Columbus, United States
 
Impact on Projections of the Antarctic Ice Sheet due to Regional Sea Level Interactions with Ice Flux and Ice-Shelf Basal Melt: Coupled Ice Sheet-Sea Level Model Results following the New ISMIP6-2300 Experimental Protocol (1185275)
Holly Kyeore Han1, Matthew J Hoffman2, Xylar Asay-Davis3, Trevor Hillebrand2 and Mauro Perego4, (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, Los Alamos, United States, (3)Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics Group, Los Alamos, United States, (4)Sandia National Laboratories, Albuquerque, United States
 
Influence of ice loading and earth properties on horizontal GPS motions in the Ross Sea region, Antarctica (1194866)
Stephanie Ann Konfal1, Terry J Wilson2, Pippa Whitehouse3, Grace Nield4, Michael G Bevis5, Eric C Kendrick2, Tim Hermans6 and Wouter van der Wal7, (1)Ohio State University Main Campus, Columbus, OH, United States, (2)Ohio State University, Columbus, United States, (3)Durham University, Department of Geography, Durham, United Kingdom, (4)University of Durham, Durham, United Kingdom, (5)Ohio State University Main Campus, Columbus, United States, (6)Royal Netherlands Institute for Sea Research, Yerseke, Netherlands, (7)Delft University of Technology, Faculty of Aerospace Engineering (AE), Delft, Netherlands
 
Connecting the subglacial environment of the Amundsen Sea Embayment glaciers to ice sheet models using a combination of aerogeophysical data and statistical methods (1197059)
David Felton Porter, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Atsuhiro Muto, The Pennsylvania State University, University Park, PA, United States, Louise Borthwick, Juneau Icefield Research Program, Juneau, AK, United States and Kirsty J Tinto, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
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