C040
Controls on Marine-Terminating Glacier, Ice Stream, and Ice Shelf Dynamics in Observations and Models I

Friday, 11 December 2020: 10:30-11:30
Virtual
Primary Convener:  Ellyn M Enderlin, Boise State University, Department of Geosciences, Boise, ID, United States
Conveners:  Catherine C Walker, Woods Hole Oceanographic Institution, Applied Ocean Physics and Engineering, Woods Hole, MA, United States, Denis Felikson, NASA Goddard Space Flight Center, Cryospheric Sciences Laboratory, Greenbelt, MD, United States and Laura Stevens, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
Primary Liaison:  Ellyn M Enderlin, Boise State University, Department of Geosciences, Boise, ID, United States
Chairs:  Ellyn M Enderlin, Boise State University, Department of Geosciences, Boise, ID, United States and Catherine C Walker, Woods Hole Oceanographic Institution, Applied Ocean Physics and Engineering, Woods Hole, MA, United States
OSPA Liaison:  Ellyn M Enderlin, Boise State University, Department of Geosciences, Boise, ID, United States
10:30
Exploring the relationship between submarine melt and subglacial discharge with observations from LeConte Glacier, Alaska (Invited) (714620)
Rebecca H Jackson1, Jonathan D Nash2, Eric D Skyllingstad2, David Sutherland3, Roman J Motyka4, Jason M Amundson5, Christian Keinholz5 and Erin Pettit6, (1)Rutgers University New Brunswick, New Brunswick, NJ, United States, (2)Oregon State Univ, Corvallis, OR, United States, (3)University of Oregon, Department of Earth Sciences, Eugene, OR, United States, (4)Univ Alaska-Geophysical Inst, Juneau, AK, United States, (5)University of Alaska Southeast, Juneau, AK, United States, (6)Oregon State University, Corvallis, United States
10:34
Mechanisms modulating warm Atlantic Water temperatures and inflow toward Helheim Glacier in southeastern Greenland (767262)
Tasha Snow1,2, Erika Amber Patin Schreiber3, Michalea D King4, Carolyn Roberts5, James Holte6, Waleed Abdalati2,7 and Ted A Scambos8, (1)University of Colorado Boulder, Boulder, CO, United States, (2)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (3)National Snow and Ice Data Center, Boulder, CO, United States, (4)Ohio State University, Byrd Polar & Climate Research Center, Columbus, OH, United States, (5)University at Buffalo, Department of Geology, Buffalo, NY, United States, (6)Scripps Institution of Oceanography, La Jolla, CA, United States, (7)University of Colorado Boulder, Department of Geography, Boulder, CO, United States, (8)University of Colorado, Boulder, Boulder, CO, United States
10:38
Greenland Icebergs as a source of sediment and micronutrients to the ocean domain (713285)
Irina Overeem, University of Colorado at Boulder, CSDMS/INSTAAR, Boulder, CO, United States, Ethan Pierce, Institute for Arctic and Alpine Research, Boulder, United States, Bent Hasholt, University of Copenhagen, Department of Geosciences and Natural Resource Management, Copenhagen, Denmark, Thomas M Marchitto Jr, Univ Colorado, Boulder, CO, United States, Jasmine S S Hansen, University of Colorado Boulder, Geological Sciences, Boulder, CO, United States, Asa K Rennermalm, Rutgers University, New Brunswick, NJ, United States and Sasha Z Leidman, University of California Davis, Davis, CA, United States
10:42
Recent Changes to Marine-terminating Glaciers in Glacier Bay National Park and Preserve and Wrangell-St. Elias National Park and Preserve (676296)
Andrew K Bliss1, Michael Loso2, Seth L Danielson3 and Michael Bower1, (1)National Park Service - Southeast Alaska, Juneau, AK, United States, (2)National Park Service Anchorage, Anchorage, AK, United States, (3)UAF, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States
10:46
Distinct Outlet-Glacier Responses to Surface-Mass-Balance and Ocean Variability (755574)
John Erich Christian1, Alexander Robel2, Cristian Proistosescu3,4, Gerard Roe5, Michelle R Koutnik5, Knut A Christianson1 and Ginny A Catania6, (1)University of Washington, Earth and Space Sciences, Seattle, WA, United States, (2)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (3)University of Washington, JISAO, Seattle, WA, United States, (4)University of Illinois Urbana‐Champaign, Department of Atmospheric Sciences, Champaign, IL, United States, (5)University of Washington, Department of Earth and Space Sciences, Seattle, WA, United States, (6)University of Texas at Austin, Austin, TX, United States
10:50
Modes and drivers of nonuniform outlet glacier response to seasonal meltwater forcing in Greenland (761624)
Michalea D King, Byrd Polar and Climate Research Center, Columbus, OH, United States, Ian Howat, Ohio State University, Byrd Polar & Climate Research Center, Columbus, OH, United States, Saurabh Vijay, Byrd Polar & Climate Research Center, Columbus, OH, United States and Ian R Joughin, Applied Physics Laboratory University of Washington, Seattle, WA, United States
10:54
Southeast Greenland’s marine-terminating peripheral glaciers underwent synchronous retreat in 2016 in response to ocean-forcing (761051)
Julia Liu1, Ellyn M Enderlin2, Andre Khalil3 and Hans-Peter Marshall2, (1)Boise State University, Boise, ID, United States, (2)Boise State University, Department of Geosciences, Boise, ID, United States, (3)University of Maine, Chemical and Biomedical Engineering, Orono, ME, United States
10:58
Investigating the drivers of Helheim Glacier’s variability from 2007 to 2020 (733359)
Gong Cheng, University of California Irvine, Irvine, CA, United States and Mathieu Morlighem, University of California - Irvine, Irvine, CA, United States
11:02
Discussion
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