C023
Linking Glaciers and Oceans through Fjords and Ice-Ocean Processes
Session ID#: 249607
Session Description:
Fjords serve as transition zones between marine-terminating glaciers and the open ocean. Across the polar regions, fjords play a critical role in regulating the exchange of oceanic heat and glacial meltwater at glacier termini and, therefore, the stability of ice sheets and glaciers. The physical complexity of fjords, shaped by spatially and temporally variable freshwater inputs from subglacial discharge, icebergs, and ice mélange, drives circulation patterns that are still not fully understood. Furthermore, fjords host highly dynamic ecosystems influenced by glacial and climate forcings on one end and ambient ocean conditions on their seaward end. This session aims to bring together research advancing our understanding of fjords in Greenland and beyond, including both observational and numerical modeling approaches. We welcome contributions from the cryosphere and oceanography communities that explore fjord circulation, heat and salt transport, freshwater forcings, ice-ocean interactions, and the evolving links between the open ocean and marine-terminating glaciers.
Co-Sponsor(s):
Index Terms:
0728 Ice shelves [CRYOSPHERE]
0732 Icebergs [CRYOSPHERE]
0799 General or miscellaneous [CRYOSPHERE]
4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
Primary Convener: Madeline Mamer, Georgia Institute of Technology Main Campus, Earth and Atmospheric Sciences, Atlanta, United States
Conveners: Till J.W. Wagner, University of Wisconsin Madison, Department of Atmospheric and Oceanic Sciences, Madison, WI, United States and David Sutherland, University of Oregon, Department of Earth Sciences, Eugene, OR, United States
Student/Early Career Convener: Paul Summers, Rutgers University, Department of Marine and Coastal Sciences, New Brunswick, United States; Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, United States
The Changing Greenland Ice-bioscape System: New Data, Tools, and Insights (Invited) (1848392)
Twila A Moon1, Dustin Carroll2, Ellyn M Enderlin3, Aman KD4, Kristin Liisa Laidre5, Ben Cohen5, Taryn E Black6, Harry L Stern III7 and Joachim Meyer8, (1)University of Colorado Boulder, NSIDC, CIRES, Boulder, CO, United States, (2)Moss Landing Marine Laboratories, San José State University, Moss Landing, United States, (3)Boise State University, Department of Geosciences, Boise, United States, (4)Boise State University, Earth Sciences, Boise, United States, (5)Applied Physics Laboratory University of Washington, Polar Science Center, Seattle, WA, United States, (6)University of Maryland College Park, College Park, MD, United States, (7)Applied Physics Laboratory University of Washington, Polar Science Center, Seattle, United States, (8)Boise State University, Geosciences, Boise, ID, United States
Understanding calving-induced mélange and fjord dynamics in Greenland through multiscale modeling and experiments (Invited) (1853904)
Yue Meng, Purdue University, West Lafayette, IN, United States, Yilang Xu, Johns Hopkins University, Baltimore, MD, United States and Thomas W N Haine, Johns Hopkins University, Department of Earth and Planetary Sciences, Baltimore, MD, United States
Ocean Fertilization and Upwelling of Carbon: The Paradox of Melting Glaciers (1874038)
Dustin Carroll1, Raphael Savelli2, Michael Wood2, Arne Koertzinger3, Stefano Cozzi4, Carolina Cantoni4, Dimitris Menemenlis2,5, Mr. Clément Bertin, PhD5, Stephanie Dutkiewicz6, Manfredi Manizza7, Charles E Miller8 and Mark James Hopwood9, (1)Moss Landing Marine Laboratories, San José State University, Moss Landing, United States, (2)San Jose State University, San Jose, United States, (3)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (4)CNR-ISMAR Consiglio Nazionale delle Ricerche, Castello, Italy, (5)NASA Jet Propulsion Laboratory, Pasadena, United States, (6)Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, (7)National Institute of Oceanography and Applied Geophysics, Sgonico, Italy, (8)California Institute of Technology, Jet Propulsion Laboratory, Pasadena, United States, (9)Southern University of Science and Technology, Department of Ocean Science and Engineering, Shenzhen, China
Can a Glacier Protect Itself? Viewing Sikkusak (Ice Mélange) and Deep-Keeled Icebergs as a Heat Sink (1887105)
Michael G Shahin1, Kenneth Hughes2, Leigh A Stearns1, Cornelis Jakob Van der Veen3, Aurora Roth4 and Fiammetta Straneo5, (1)University of Pennsylvania, Department of Earth and Environmental Sciences, Philadelphia, PA, United States, (2)University of Waikato, Hamilton, New Zealand, (3)University of Kansas, Department of Geography and Atmospheric Science, Lawrence, United States, (4)Scripps Institution of Oceanography, La Jolla, CA, United States, (5)Harvard University, Cambridge, United States
Quantifying the Feedback Between Ice Mélange Buttressing Force and Glacier Calving (1891611)
Juliet Baker, Tufts University, Medford, MA, United States, Alexander Robel, Georgia Institute of Technology, Earth and Atmospheric Sciences, Atlanta, United States and Paul Summers, Stanford University, Department of Geophysics, Stanford, CA, United States
Seawater Intrusion and Freshwater Outflow in Subglacial Channels at Rasmussen Glacier, Northwest Greenland (1895279)
Veronica Hegelein1, Peter Washam2, Britney Schmidt3,4, Matthew Meister5, Frances E Bryson5, Daniel Lein5, Jorge Coppin-Massanet1, Paul Tanghe5 and Justin Lawrence6, (1)Cornell University, Earth and Atmospheric Science, Ithaca, United States, (2)Cornell University, Astronomy, Ithaca, NY, United States, (3)Cornell University, Astronomy and Earth & Atmospheric Sciences, Ithaca, United States, (4)Cornell University, Earth and Atmospheric Science, Ithaca, NY, United States, (5)Cornell University, Astronomy, Ithaca, United States, (6)Honeybee Robotics, Altadena, United States
Subglacial discharge drives ice mélange breakup at deeply grounded glaciers (1897551)
Nicole Abib1, David Sutherland2, Jason M Amundson3, Michalea D King4 and Ian R Joughin4, (1)University of Alaska Southeast, Department of Natural Sciences, Juneau, AK, United States, (2)University of Oregon, Department of Earth Sciences, Eugene, OR, United States, (3)University of Alaska Southeast, Department of Natural Sciences, Juneau, United States, (4)Applied Physics Laboratory, University of Washington, Polar Science Center, Seattle, United States
Can internal waves enhance submarine melting at Greenland’s marine-terminating glaciers? (1918533)
Jesse Cusack1, Ken Zhao2 and Amrapalli Garanaik1, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (2)University of North Carolina at Chapel Hill, Chapel Hill, United States
Using Internal Gravity Wave Fibersensing Data to Quantify Glacial Melt and Investigate Fjord Dynamics (1929727)
Deven Loska1, Dominik Gräff1,2 and Bradley Paul Lipovsky1, (1)University of Washington, Department of Earth and Space Sciences, Seattle, United States, (2)ETH Zurich, Laboratory of Hydraulics, Hydrology and Glaciology (VAW), Zurich, Switzerland
Melt from Sermeq Kujalleq, Greenland’s most active glacier, drives vigorous nutrient upwelling and enhanced coastal productivity (1933225)
Mike Wood1, Dustin Carroll2, Ian G Fenty3, Mr. Clément Bertin, PhD4, Basil Darby5, Stephanie Dutkiewicz6, Mark James Hopwood7, Ala Khazendar3, Lorenz Meire8, Hilde Oliver9, Tara Parker10 and Josh K Willis11, (1)Moss Landing Marine Laboratories, Moss Landing, CA, United States, (2)Moss Landing Marine Laboratories, San José State University, Moss Landing, United States, (3)NASA Jet Propulsion Laboratory, Pasadena, United States, (4)IRT Saint Exupéry, Toulouse, France, (5)Moss Landing Marine Laboratories, Moss Landing, United States, (6)Massachusetts Institute of Technology, Department of Earth, Atmospheric and Planetary Sciences, Cambridge, United States, (7)Southern University of Science and Technology, Shenzhen, China, (8)Greenland Institute of Natural Resources, Nuuk, Greenland, (9)University of Georgia, Department of Marine Sciences, Athens, United States, (10)San Jose State University, San Jose, CA, United States, (11)Jet Propulsion Laboratory, Pasadena, CA, United States
Sources and pathways of freshwater in the collapsing ice and ocean ecosystem of Milne Fiord, Canada (1951161)
Peter Washam, Cornell University, Earth and Atmospheric Science, Ithaca, NY, United States, Jérémie Bonneau, University of British Columbia, Civil Engineering, Vancouver, BC, Canada, Andrew Mullen, Cornell University, Ithaca, United States, Derek Mueller, Carleton University, Geography and Environmental Studies, Ottawa, ON, Canada, Yulia Antropova, Carleton University, Department of Geography and Environmental Studies, Ottawa, ON, Canada, Bernard Laval, University of British Columbia, Department of Civil Engineering, Vancouver, BC, Canada, Alexander Forrest, University of California Davis, Civil and Environmental Engineering, Davis, CA, United States and Britney Schmidt, Cornell University, Astronomy and Earth & Atmospheric Sciences, Ithaca, United States
Near-terminus Surveys with a Hybrid ROV Reveal Multilayered Circulation and Strong Inflow at the Grounding Line of a Greenland Glacier (1952895)
Rebecca H Jackson1, Bridget Ovall2, Ginny A Catania3, Elias J Hunter2, Duncan Wheeler4,5, Michael Jakuba6, Emily Eidam7 and TERMINUS Team, (1)Tufts University, Earth and Climate Sciences, Medford, MA, United States, (2)Rutgers University, New Brunswick, United States, (3)University of Texas at Austin, Jackson School of Geosciences, Austin, United States, (4)University of California San Diego, Scripps Institution of Oceanography, La Jolla, United States, (5)Tufts University, Medford, United States, (6)Woods Hole Oceanographic Inst., Woods Hole, United States, (7)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States
Glacial silicate dynamics in Arctic fjord and riverine sediments (1958303)
Kathryn Howe1, Lacey Bowman1, Katharine Hendry2 and Jeffrey W Krause3, (1)Dauphin Island Sea Lab, Dauphin Island, United States, (2)NERC British Antarctic Survey, Cambridge, United Kingdom, (3)Dauphin Island Sea Lab, Dauphin Island, AL, United States
Detailed Observations of Buoyant Plumes within 15m of a Glacier Terminus (1964757)
Duncan Wheeler1, Kaelan Weiss2, Jonathan D Nash2, Rebecca H Jackson3, Meagan E. Wengrove4, Erin C Pettit2, Noah Osman2, Nadia Cohen4, Jesse M. Cusack2, Ken Zhao5, Jasmine Nahorniak2, Dr. Trevor W Harrison, PhD6 and David Sutherland7, (1)Tufts University, Earth and Climate Sciences, Medford, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (3)Tufts University, Earth and Climate Sciences, Medford, MA, United States, (4)Oregon State University, Civil and Construction Engineering, Corvallis, United States, (5)University of North Carolina at Chapel Hill, Chapel Hill, United States, (6)Applied Physics Laboratory University of Washington, Seattle, WA, United States, (7)University of Oregon, Department of Earth Sciences, Eugene, OR, United States
Thermal Shadows of Icebergs Observed with a Towed Fiber-Optic Cable (1970908)
Dominik Gräff1, Bradley Paul Lipovsky1, Rebecca H Jackson2, Duncan Wheeler3, Andreas Vieli4 and Daniel Farinotti5, (1)University of Washington, Department of Earth and Space Sciences, Seattle, United States, (2)Tufts University, Earth and Climate Sciences, Medford, MA, United States, (3)Tufts University, Earth and Climate Sciences, Medford, United States, (4)University of Zurich, Zurich, Switzerland, (5)ETH Zurich, Laboratory of Hydraulics, Hydrology and Glaciology (VAW), Zurich, Switzerland
Ocean and atmospheric warming in Wolstenholme Fjord, Northwest Greenland (1978385)
Britney Schmidt1, Peter Washam2, Veronica Hegelein3, Frances E Bryson4, Jorge Coppin-Massanet3, Daniel Lein4, Matthew Meister4, Justin Lawrence5, Paul Tanghe4, Enrica Quartini4 and Brandi Revels1, (1)Cornell University, Astronomy and Earth & Atmospheric Sciences, Ithaca, United States, (2)Cornell University, Astronomy, Ithaca, NY, United States, (3)Cornell University, Earth and Atmospheric Science, Ithaca, United States, (4)Cornell University, Astronomy, Ithaca, United States, (5)Honeybee Robotics, Altadena, United States
