C018
Permafrost Systems in Transition: Interdisciplinary Approaches and Research Challenges II

Tuesday, 8 December 2020: 16:00-17:00
Virtual
Primary Convener:  Christian G Andresen, University of Wisconsin Madison, Madison, WI, United States
Convener:  Mark J Lara, University of Illinois, Plant Biology, Urbana-Champaign, IL, United States
Primary Liaison:  Sarah G. Evans, University of Colorado Boulder, Geological Sciences, Boulder, CO, United States
Chairs:  Sarah G. Evans, University of Colorado Boulder, Geological Sciences, Boulder, CO, United States and Mark J Lara, University of Illinois, Plant Biology, Urbana-Champaign, IL, United States
OSPA Liaison:  Sarah G. Evans, University of Colorado Boulder, Geological Sciences, Boulder, CO, United States
16:00
Integrated modeling and observations of ice wedge degradation and thermokarst pool expansion (Invited) (712387)
Charles Abolt1, Adam L Atchley1, Michael Young2, Dylan R Harp3, Collin Rumpca4 and Cathy Jean Wilson5, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)University of Texas at Austin, Bureau of Economic Geology, Jackson School of Geosciences, Austin, TX, United States, (3)Los Alamos National Laboratory, Earth and Environmental Sciences Division, Los Alamos, NM, United States, (4)Dakota State University, Madison, SD, United States, (5)Los Alamos National Laboratory, Earth and Environmental Science Division, Los Alamos, NM, United States
16:04
Understanding inundation and drainage patterns of ice-wedge polygons (675255)
Dylan R Harp, Los Alamos National Laboratory, Earth and Environmental Sciences Division, Los Alamos, NM, United States, Vitaly A Zlotnik, University of Nebraska - Lincoln, Earth and Atmospheric Sciences, Lincoln, NE, United States, Charles Abolt, Los Alamos National Laboratory, Computational Earth Science, Los Alamos, NM, United States, Elchin Jafarov, Los Alamos National Laboratory, Computational Earth Sciences, Los Alamos, NM, United States, Adam L Atchley, Los Alamos National Laboratory, Los Alamos, NM, United States and Cathy Jean Wilson, Los Alamos National Laboratory, Earth and Environmental Science Division, Los Alamos, NM, United States
16:08
A Quantitative Graph-Based Assessment of Ice-Wedge Trough Dynamics in Polygonal Thermokarst Landscapes of the Anaktuvuk River Fire Scar (671579)
Tabea Rettelbach1, Guido Grosse2, Ingmar Nitze1, Jörg Brauchle3, Tilman Bucher3, Matthias Gessner3, Benjamin M Jones4, Julia Boike1, Moritz Langer5 and Johann-Christoph Freytag6, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research Section, Potsdam, Germany, (3)German Aerospace Center, Institute of Optical Sensor Systems, Berlin, Germany, (4)U.S. Geological Survey, Anchorage, AK, United States, (5)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Permafrost Research Section, Potsdam, Germany, (6)Humboldt University of Berlin, Department of Computer Science, Berlin, Germany
16:12
Wildfire, permafrost, and vegetation interactions in a discontinuous permafrost region revealed by dual-frequency airborne radar observations (675596)
Roger J Michaelides1, Richard H Chen2, Kevin M Schaefer3, Andy Parsekian4, Gerald V Frost Jr5,6, Taylor D Sullivan4, Howard A Zebker7, Mahta Moghaddam8, Susan Natali9 and Matthew Siegfried10, (1)Colorado School of Mines, Department of Geophysics, Golden, CO, United States, (2)Jet Propulsion Laboratory, Pasadena, CA, United States, (3)National Snow and Ice Data Center, Cooperative Institute for Research in the Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado, U.S.A, Boulder, CO, United States, (4)University of Wyoming, Laramie, WY, United States, (5)Stockholm University, Department of Physical Geography and Quaternary Geology, Stockholm, Sweden, (6)Alaska Biological Research, Inc., Fairbanks, AK, United States, (7)Stanford Univ, Stanford, CA, United States, (8)University of Southern California, Ming Hsieh Department of Electrical and Computer Engineering, Los Angeles, CA, United States, (9)Woods Hole Research Center, Falmouth, MA, United States, (10)Colorado School of Mines, Geophysics, Golden, CO, United States
16:16
Divergent responses of shrub cover in upland and lowland tundra ecosystems to climate change and fire disturbance (685890)
Yaping Chen, University of Illinois at Urbana Champaign, Urbana, IL, United States; Virginia Institute of Marine Science, Physical Sciences, Gloucester Point, VA, United States, Fengsheng Hu, University of Illinois at Urbana Champaign, Plant Biology, Geology, Urbana, IL, United States and Mark J Lara, University of Illinois, Plant Biology, Urbana-Champaign, IL, United States
16:20
Spatial patterns of snow distribution in Arctic permafrost landscapes estimated from ground- and UAV-based observations (686116)
Katrina E Bennett1, Robert Busey2, Bob Bolton3, Emma Lathrop4, Julian B Dann5, Baptiste Dafflon6, Ian Shirley6, Mara Nutt1, John E Peterson6, Susan S. Hubbard6 and Cathy Jean Wilson4, (1)Los Alamos National Laboratory, Earth and Environmental Sciences, Los Alamos, NM, United States, (2)Univ Alaska, Fairbanks, AK, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States, (4)Los Alamos National Laboratory, Earth and Environmental Science Division, Los Alamos, NM, United States, (5)Los Alamos National Laboratory, Space Science and Applications, Los Alamos, NM, United States, (6)Lawrence Berkeley National Laboratory, Berkeley, CA, United States
16:24
Impact of Abrupt Permafrost Thaw on Mineral Elements Release: Case Study in Peel Plateau, West Canadian Arctic. (722147)
Maxime Thomas1, Sophie Opfergelt1, Arthur Monhonval1, Lisa Bröder2, Jorien Vonk2, Scott Zolkos3, Suzanne Tank3 and Steve Kokelj4, (1)Université Catholique de Louvain, Earth and Life Institute, Environmental Sciences (ELIe), Louvain-La-Neuve, Belgium, (2)Vrije Universiteit Amsterdam, Amsterdam, Netherlands, (3)University of Alberta, Department of Biological Sciences, Edmonton, AB, Canada, (4)Northwest Territories Geological Survey, Yellowknife, NT, Canada
16:28
The Effects of Talik Formation on Non-Growing Season Carbon and Nitrogen Cycling in Permafrost Ecosystems (756701)
Ian Shirley1, Baptiste Dafflon1, Haruko M Wainwright1, Zelalem A Mekonnen1, Bhavna Arora2, William J Riley1 and Susan S. Hubbard1, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Energy Geosciences Division, Berkeley, CA, United States
16:32
Discussion
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