C026
Observations, interactions, and implications of permafrost systems in transition

Session ID#: 85466

Session Description:
Permafrost terrains in high latitude and alpine regions exert a primary control on geophysical, hydrologic, geomorphic, and biotic properties and processes including ecosystem fluxes and thermokarst/thermal erosion. As global air temperatures increase, and permafrost degrades, it is crucial to understand how interactions and feedbacks of these processes will be altered, as well as more accurate measures of permafrost distribution, characteristics, and dynamics. This session welcomes studies across cryosphere, earth surface, global environmental change, and hydrology disciplines that explore ongoing changes, and/or enhance permafrost region process understanding. These include but are not limited to studies using field observations, remote sensing, geophysical techniques, experiments and numerical modeling. We are particularly interested in submissions that deal with thermokarst and thaw-related landscape dynamics with impacts on landscape-scale processes, infrastructure, society, health, and the cryosphere. Contributions that include interdisciplinary approaches or demonstrate the development of new techniques, data integration, and/or highlight challenges are strongly encouraged.
Co-Organized:
  • EP - Earth and Planetary Surface Processes
  • H - Hydrology
Index Terms:

0702 Permafrost [CRYOSPHERE]
0708 Thermokarst [CRYOSPHERE]
0768 Thermal regime [CRYOSPHERE]
0774 Dynamics [CRYOSPHERE]

Primary Convener:  Sarah G. Evans, Appalachian State University, Department of Geological and Environmental Sciences, Boone, NC, United States
Conveners:  Melissa Karine Ward, McGill University, Montreal, QC, Canada, Matthias Fuchs, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany and Cathy Jean Wilson, Los Alamos National Laboratory, Los Alamos, NM, United States
Primary Liaison:  Sarah G. Evans, Appalachian State University, Department of Geological and Environmental Sciences, Boone, NC, United States
 
Potential mechanistic causes of increased baseflow across northern Eurasia rivers underlain by permafrost (488125)
Sarah G. Evans1, Brandon Yokeley1,2 and Connor Stephens1, (1)Appalachian State University, Department of Geological and Environmental Sciences, Boone, NC, United States, (2)Kanasa State University, Department of Geology, Manhattan, NC, United States
 
Causes and Consequences of Catastrophic Lake Drainage in an Evolving Arctic System: First Year Activities and Initial Results (488992)
Kenneth M Hinkel1, Benjamin M Jones2, Noriaki Ohara3, Christopher D Arp4, Andy Parsekian3, Amy Lynn Breen5, Louise Melanie Farquharson6, Mikhail Z Kanevskiy4, Benjamin Gaglioti4, Chris Larsen6, Rodrigo Correa Rangel3 and Ian Nichols1, (1)Michigan Technological University, Houghton, MI, United States, (2)University of Alaska, Fairbanks, Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, United States, (3)University of Wyoming, Laramie, WY, United States, (4)University of Alaska, Fairbanks, Fairbanks, AK, United States, (5)University of Alaska, Fairbanks, Scenarios Network for Alaska & Arctic Planning, Fairbanks, AK, United States, (6)University of Alaska Fairbanks, Fairbanks, AK, United States
 
Ecological indicators of near-surface permafrost habitat at the southern margin of the boreal forest in China (491720)
Yongyu Yue, Peking university, Beijing, China, Hongyan Liu, College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface, Peking University, Beijing, China and Weichao Guo, University of California Merced, Merced, CA, United States
 
Big Imagery as a Resource to Understand Patterns, Dynamics, and Vulnerability of Arctic Polygonal Tundra (499228)
Md Abul Ehsan Bhuiyan, University of Connecticut, Natural Resources and the Environment, Groton, CT, United States, Chandi Witharana, University of Connecticut, Natural Resources and the Environment, Storrs, CT, United States and Anna K Liljedahl, University of Alaska Fairbanks, Fairbanks, AK, United States
 
Impacts of forest fires on the active layer thickness and near-surface permafrost temperatures in the northern Da Xing’anling (Hinggan) Mountains, NE China (500510)
Xiaoying Li1,2, Huijun Jin1,3, Ruixia He1, Yadong Huang1,2, Hongwei Wang1 and Lanzhi Lv1, (1)Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, State Key Laboratory of Frozen Soils Engineering, Lanzhou, China, (2)University of Chinese Academy of Sciences, College of Resources and Environment, Beijing, China, (3)Harbin Institute of Technology, School of Civil Engineering, Harbin, China
 
Thermokarst subsidence in Central Yakutia revealed by ALOS/ALOS-2 InSAR analysis (504943)
Takahiro Abe, Japan Aerospace Exploration Agency, Kanagawa, Japan, Go Iwahana, University of Alaska Fairbanks, International Arctic Research Center, Fairbanks, AK, United States and Takeo Tadono, JAXA Japan Aerospace Exploration Agency, Tsukuba, Japan
 
Lateral Thermokarst Lake Dynamics: A Remote Sensing Based Analysis of Spatial Variabilities and Erosion Processes (508210)
Soraya Kaiser1,2, Guido Grosse1,3, Julia Boike1,2 and Moritz Langer1,2, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (2)Humboldt University of Berlin, Department of Geography, Berlin, Germany, (3)University of Potsdam, Institute of Geosciences, Potsdam, Germany
 
Quantifying the influence of soil, snowpack, topography and vegetation properties on soil hydro-thermal behavior across an Arctic watershed in a discontinuous permafrost environment (Invited) (508640)
Baptiste Dafflon1, Sebastian Uhlemann2, Ian Shirley1, Hunter Akins3, Jack Lamb1, Craig Ulrich3, John E Peterson3, Carlotta Brunetti3, Sebastien Biraud3, Christian G Andresen4, Cathy Jean Wilson5, Vladimir E Romanovsky6 and Susan Hubbard1, (1)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (4)Los Alamos National Lab, Los Alamos, NM, United States, (5)Los Alamos National Laboratory, Los Alamos, NM, United States, (6)University of Alaska Fairbanks, Fairbanks, AK, United States
 
Self-organization of ice-wedge systems during their formation and degradation (508889)
Yuri Shur, University of Alaska Fairbanks, Fairbanks, AK, United States, Daniel Fortier, University of Montreal, Montreal, QC, Canada, Torre Jorgenson, Alaska Ecoscience, Fairbanks, AK, United States, Mikhail Z Kanevskiy, University of Alaska, Fairbanks, Fairbanks, AK, United States, Benjamin M Jones, University of Alaska, Fairbanks, Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, United States and Melissa Karine Ward, McGill University, Montreal, QC, Canada
 
Goldstream Valley Permafrost Map (510082)
Ronald P Daanen1, Abraham Emond2, Anna K Liljedahl3, Vladimir E Romanovsky3, Burke J Minsley4, Katey M Walter Anthony5 and David L. Barnes5, (1)Department of Natural Resources Fairbanks, Fairbanks, AK, United States, (2)Alaska Division of Geological and Geophysical Surveys, Fairbanks, AK, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States, (4)USGS Geology, Geophysics, and Geochemistry Science Center, Denver, CO, United States, (5)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States
 
Navigating Disturbance Regimes in the New Arctic (510125)
Mark J Lara1, Melissa L Chipman2 and Yaping Chen1,3, (1)University of Illinois at Urbana Champaign, Urbana, IL, United States, (2)Syracuse University, Syracuse, NY, United States, (3)Northfield, MN, United States
 
High Resolution Digital Terrain Models Provide Multi-Dimensional Perspective on Thaw Slump-driven Transformation of Permafrost Terrain in the Canadian Western Arctic. (510408)
Jurjen van der Sluijs, Northwest Territories Centre for Geomatics, Yellowknife, NT, Canada, Steve Kokelj, Northwest Territories Geological Survey, Yellowknife, NT, Canada, Jon F Tunnicliffe, University of Auckland, School of Environment, Auckland, New Zealand and Ashley Rudy, Northwest Territories Geoscience Office, Yellowknife, NT, Canada
 
Incorporating the Seasonal Snowpack into Thermo-Hydrologic Modeling of Frozen Ground at Niwot Ridge, CO (511478)
Michael (Mickey) Rush, Institute of Arctic and Alpine Research, Boulder, CO, United States and Harihar Rajaram, Johns Hopkins University, Balitmore, MD, United States
 
Examining Environmental Gradients in permafrost regions – achievements of the ESA DUE GlobPermafrost project and first results from ESA CCI+ Permafrost (511852)
Annett Bartsch1,2, Guido Grosse3,4, Sebastian Westermann5, Tazio Strozzi6, Claude R Duguay7,8, Frank Martin Seifert9, Jaroslav Obu10, Andreas Kääb5, Ingmar Nitze11, Birgit Heim11, Antonie Haas12, Barbara Widhalm13, Sebastian Laboor11, Sina Muster14, Andreas Wiesmann6, Gustaf Hugelius15, Reynald Delaloye16, Heidrun Matthes11, Marina O Leibman17 and further members of the ESA DUE GlobPermafrost and ESA CCI+ Permafrost teams, (1)Austrian Polar Research Institute, Vienna, Austria, (2)B.Geos, Korneuburg, Austria, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (4)University of Potsdam, Institute of Geosciences, Potsdam, Germany, (5)University of Oslo, Department of Geosciences, Oslo, Norway, (6)Gamma Remote Sensing, Guemligen, Switzerland, (7)University of Waterloo, Department of Geography & Environmental Management and Interdisciplinary Centre on Climate Change (IC3), Waterloo, ON, Canada, (8)H2O Geomatics, Waterloo, ON, Canada, (9)Corvallis, OR, United States, (10)University of Oslo, Oslo, Norway, (11)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (12)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (13)Zentralanstalt für Meteorologie und Geodynamik, Climate Change Impacts, Vienna, Austria, (14)Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany, (15)Stockholm University, Department of Physical Geography, Stockholm, Sweden, (16)University of Fribourg, Fribourg, Switzerland, (17)Russian Academy of Sciences, Earth Cryosphere Institute, Tyumen Scientific Centre (Siberian Branch), Moscow, Russia
 
Post-wildfire surface deformation at Batagay, Eastern Siberia: detection by L- and C-band InSAR and preliminary report of field observations (512978)
Masato Furuya1, Kazuki Yanagiya1, Go Iwahana2 and Alexander Fedorov3, (1)Hokkaido University, Sapporo, Japan, (2)University of Alaska Fairbanks, International Arctic Research Center, Fairbanks, AK, United States, (3)Melnikov permafrost institute, The Siberian branch of the Russian Academy of Sciences, Yakutsk, Russia
 
Recent Thaw and Ponding of Upland Ice-Wedge Polygons Across the Canadian Arctic Archipelago (516998)
Rob Fraser1, Steve Kokelj2, Morgan McFarlane-Winchester3, Trevor C Lantz4 and Ian Olthof1, (1)Natural Resources Canada, Ottawa, ON, Canada, (2)Northwest Territories Geological Survey, Yellowknife, NT, Canada, (3)Natural Resources Canada, Ottawa, Canada, (4)School of Environmental Studies, University of Victoria, Victoria, BC, Canada
 
Characterizing Runoff Regimes in Subarctic Wetland-Dominated Landscapes: Application to the Hudson Bay Lowlands, Canada (519210)
Mikhail Mack, Wilfrid Laurier University, Waterloo, ON, Canada, William L Quinton, Wilfrid Laurier University, Geography and Environmental Studies, Waterloo, ON, Canada and James McLaughlin, Ontario Forest Research Inst, Sault Ste Marie, ON, Canada
 
The Impact of Freeze-Thaw Cycles on Soil Porosity in Permafrost-Affected Soils (529673)
Erin Rooney1, Rebecca Lybrand2, Maria Ines Dragila3, Adrian Gallo1, Jeff A Hatten1, Loren R Reno4, Michael R Sanclements5, Tamas Varga6 and Odeta Qafoku7, (1)Oregon State University, Corvallis, OR, United States, (2)Oregon State University, Department of Crop and Soil Science, Corvallis, OR, United States, (3)Oregon State Univ, Corvallis, OR, United States, (4)Pacific Northwest National Laboratory, Richland, United States, (5)NEON, Boulder, CO, United States, (6)Pacific Northwest National Laboratory, Richland, WA, United States, (7)Battelle Pacific Northwest, Richland, WA, United States
 
Groundwater Discharge in the Lagoons of Alaskan Beaufort Sea (530062)
Cansu Demir, University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States, M. Bayani Cardenas, University of Texas at Austin, Geological Sciences, Austin, TX, United States, James W McClelland, University of Texas Marine Science Institute, Port Aransas, TX, United States and Micaela nicole Pedrazas, University of Texas at Austin, Geological Sciences, Austin, United States
 
Seasonal dynamics of permafrost landscapes: InSAR ground displacements and controlling factors documented by in situ and Sentinel-1/-2 remote sensing data (536945)
Line Rouyet1, Lin Liu2, Tom Rune Lauknes1, Hanne H. Christiansen3, Sarah Marie Strand3, Yngvar Larsen1, Laura Stendardi4, Stein-Rune Karlsen1, Bernt Johansen1 and Eirik Malnes1, (1)NORCE Norwegian Research Centre, Tromsø, Norway, (2)The Chinese University of Hong Kong, Earth System Science Programme, Hong Kong, Hong Kong, (3)University Centre in Svalbard, Arctic Geology Department, Longyearbyen, Norway, (4)Free University of Bozen-Bolzano, Faculty of Science and Technology, Bolzano, Italy
 
Projected near-surface permafrost degradation over northern North America based on Canadian regional climate model simulations (544995)
Dae Il Jeong, Environment and Climate Change Canada, Climate Data and Analysis Section, Climate Research Division, Toronto, ON, Canada and Alex J. Cannon, Environment and Climate Change Canada, Climate Data and Analysis Section, Climate Research Division, Victoria, BC, Canada
 
Evaluating Integrated Surface/Subsurface Permafrost Thermal Hydrology Models Against Field Data in Polygonal Tundra (556266)
Ahmad Jan, Scott L Painter and Ethan T Coon, Oak Ridge National Laboratory, Oak Ridge, TN, United States
 
Assessment of nitrogen dynamics in soil, vegetation, and surface water across successional stages of ice-wedge degradation and stabilization in the tundra of northern Alaska (560437)
Kelcy Kent, University of Virginia, Charlottesville, VA, United States, Howard E Epstein, University of Virginia Main Campus, Environmental Sciences, Charlottesville, VA, United States, Torre Jorgenson, Alaska Ecoscience, Fairbanks, AK, United States, Anna K Liljedahl, University of Alaska Fairbanks, Fairbanks, AK, United States, Claire G Griffin, University of Texas Marine Science Institute, Port Aransas, TX, United States, Mikhail Z Kanevskiy, University of Alaska, Fairbanks, Fairbanks, AK, United States, Ronald P Daanen, DGGS, Fairbanks, AK, United States and Yuri Shur, Univ Alaska Fairbanks, Fairbanks, AK, United States
 
Landscape Controls on Thermokarst Lake Water Fluxes between Inuvik and Tuktoyaktuk, Northwest Territories, Canada. (560624)
E Wilcox1, B. Walker1, Gabriel Hould Gosselin2, Brent B Wolfe1, Oliver Sonnentag3, Taija Saarela4 and Philip Marsh1, (1)Wilfrid Laurier University, Cold Regions Research Centre, Waterloo, ON, Canada, (2)University of Montreal, Department of Geography, Montreal, Canada, (3)Université de Montréal, Département de Géographie, Montréal, QC, Canada, (4)University of Eastern Finland, Department of Environmental and Biological Sciences, Kuopio, Finland
 
Electrical Resistivity Imaging Reveals Thawed Substrate Beneath and Across an Entire Arctic Lagoon within Continuous Permafrost (561100)
Micaela Nicole Pedrazas, University of Texas at Austin, Austin, TX, United States, M. Bayani Cardenas, University of Texas at Austin, Geological Sciences, Austin, TX, United States, James W McClelland, University of Texas Marine Science Institute, Port Aransas, TX, United States and Craig T Connolly, University of Texas at Austin, Marine Science Institute, Austin, TX, United States
 
Permafrost Discovery Gateway: A web platform to enable discovery and knowledge-generation of permafrost Big Imagery products (561794)
Anna K Liljedahl, University of Alaska Fairbanks, Fairbanks, AK, United States, Benjamin M Jones, University of Alaska, Fairbanks, Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, United States, Michael Brubaker, Alaska Native Tribal Health Consortium, Anchorage, AK, United States, Amber E Budden, DataONE, Santa Barbara, CA, United States, Jason M Cervenec, The Ohio State University, Byrd Polar and Climate Research Center, Columbus, OH, United States, Guido Grosse, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, Matthew B. Jones, National Center for Ecological Analysis and Synthesis, Santa Barbara, CA, United States, Luigi Marini, University of Illinois at Urbana Champaign, Urbana, IL, United States, Kenton McHenry, National Center for Super Computing Applications, Urbana, IL, United States, Jennifer Moss, University of Alaska Fairbanks, Fairbanks, United States, Paul J Morin, Polar Geospatial Center, St Paul, MN, United States, Ingmar Nitze, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, Aiman Soliman, National Center for Super Computing Applications, CyberGIS Center for Advanced Digital and Spatial Studies, Urbana, IL, United States, Galina Wind, Science Systems and Applications, Inc., Lanham, MD, United States and Chandi Witharana, University of Connecticut, Natural Resources and the Environment, Storrs, CT, United States
 
Geologic Terrain Unit and Geohazards Mapping, Arctic Strategic Transportation and Resources (ASTAR) Project, North Slope, Alaska (562834)
Susan Wilson, 3rd Rock Consulting LLC, Wasilla, AK, United States, Trent Hubbard, Alaska Division of Geological and Geophysical Surveys, Fairbanks, AK, United States and Hans Hoffman, ASRC Energy Services Alaska, Inc., Anchorage, United States
 
Long-term monitoring of permafrost degradation documents two forms of landscape response (Invited) (565241)
Louise Melanie Farquharson1, Vladimir E Romanovsky1, Alexander L Kholodov1, Dmitry Nicolsky1, William Cable2, Donald A Walker1 and Steven V Kokelj3, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (3)Northwest Territories Geological Survey, Yellowknife, NT, Canada
 
Does Tundra Fire Accelerate Drainage of Lakes in Discontinuous Permafrost? Evidence from the Yukon-Kuskokwim Delta, Alaska (570951)
Gerald V Frost Jr1, Lisa B. Saperstein2, Rachel Loehman3, Kevin M Schaefer4, Roger J Michaelides5, Matthew J Macander6 and Dorte Dissing1, (1)Alaska Biological Research, Inc., Fairbanks, United States, (2)U.S. Fish and Wildlife Service, Anchorage, AK, United States, (3)USGS Alaska Science Center, Anchorage, AK, United States, (4)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, (5)Stanford University, Geophysics, Stanford, CA, United States, (6)ABR, Inc.—Environmental Research & Services, Fairbanks, AK, United States
 
Coupling of Snow and Freeze-Thaw Processes to Model Permafrost State in a Timberline Ecotone (574782)
Wenbo Zhou1, Valeriy Yu Ivanov2, Aleksey Y Sheshukov3, Jingfeng Wang4, Husayn Ahmad El Sharif5, Desheng Liu6, Valeriy Mazepa7, Stepan Shiyatov7 and Alexander Sokolov8, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)University of Michigan, Department of Civil and Environmental Engineering, Ann Arbor, MI, United States, (3)Kansas State University, Biological & Agricultural Engineering, Manhattan, KS, United States, (4)GA Ins of Tech-Civil & Env Eng, Atlanta, GA, United States, (5)Georgia Institute of Technology Main Campus, Lake Worth, FL, United States, (6)The Ohio State University, Department of Geography, Columbus, OH, United States, (7)Institute of Plant and Animal Ecology, the Ural Branch of the Russian Academy of Sciences, Yekaterinburg, Russia, (8)Arctic Research Station, Institute of Plant and Animal Ecology, the Ural Branch of the Russian Academy of Sciences, Labytnangi, Russia
 
Accounting for spatial heterogeneity of freeze/thaw cycles in surface state retrieval for permafrost landscapes (575071)
Helena Bergstedt, University of Salzburg, Salzburg, Austria, Annett Bartsch, Austrian Polar Research Institute, Vienna, Austria; b.geos GmbH, Korneuburg, Austria, Christine Kroisleitner, b.geos GmbH, Vienna, Austria, Claude R Duguay, University of Waterloo, Department of Geography & Environmental Management and Interdisciplinary Centre on Climate Change (IC3), Waterloo, ON, Canada and Benjamin M Jones, University of Alaska, Fairbanks, Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, United States
 
Induced polarization as a new tool to monitor the degradation of permafrost (575821)
Andre Revil1, Antoine Coperey2, Pierre Allain Duvillard3, Florence Magnin4, Ludovic Ravanel5 and Abdellahi Soueid Ahmed4, (1)CNRS, Paris Cedex 16, France, (2)Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, Grenoble, France, (3)Univ. Grenoble Alpes, Univ. Savoie Mont-Blanc, CNRS, UMR CNRS 5204, EDYTEM, , France, Le Bourget du Lac, France, (4)Univ. Grenoble Alpes, Univ. Savoie Mont-Blanc, CNRS, UMR CNRS 5204, EDYTEM, Le Bourget du Lac, France, (5)EDYTEM Environnements, Dynamiques et Territoires de la Montagne, Le Bourget du Lac, France
 
Reduced winter off-road tundra travel under climate change (577241)
Anne Gaedeke1, Moritz Langer2,3, Julia Boike4, Eleanor Burke5, Jinfeng Chang6, Sebastian Ostberg1, Wim Thiery7 and Thonicke Kirsten1, (1)Potsdam Institute for Climate Impact Research, Potsdam, Germany, (2)Alfred Wegener Institute, Potsdam, Germany, (3)Humboldt University of Berlin, Department of Geography, Berlin, Germany, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (5)Met Office Hadley Centre, Exeter, United Kingdom, (6)IIASA International Institute for Applied Systems Analysis, Ecosystems Services and Management, Laxenburg, Austria, (7)Vrije University Brussel, Department of Hydrology and Hydraulic Engineering, Brussels, Belgium
 
High Potential for Loss of Circumpolar Pingos, Ice-wedge Polygons and Rock Glaciers due to Climate Change (578823)
Olli Karjalainen1, Miska Luoto2, Juha Antero Aalto2, Bernd Etzelmuller3, Guido Grosse4, Benjamin M Jones5, Karianne S Lilleoren3 and Jan Hjort1, (1)University of Oulu, Oulu, Finland, (2)University of Helsinki, Helsinki, Finland, (3)University of Oslo, Oslo, Norway, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (5)University of Alaska, Fairbanks, Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, United States
 
Simulated the spatial and temporal distribution of freeze and thaw fronts (580013)
Ruichao Li1, Zhenghui Xie2, Junqiang Gao3, Jinbo Xie4, Longhuan Wang1 and Yan Wang5, (1)LASG, IAP, Chinese Academy of Sciences, Beijing, China, (2)LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (3)Nanjing University of Information Science and Technology, Nanjing, China, (4)IAP Insititute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China, (5)Institute of Atmospheric Physics, Beijing, China
 
Mapping Retrogressive Thaw Slumps on the Tibetan Plateau using Sentinel-2 images and Deep Learning (584799)
Lingcao Huang, The Chinese University of Hong Kong, Earth System Science Programme, Hong Kong, China and Lin Liu, The Chinese University of Hong Kong, Earth System Science Programme, Hong Kong, Hong Kong
 
Thaw dynamics of a rapidly degrading isolated permafrost plateau in south-central Alaska (589999)
Joel Eklof, University of Washington, Civil and Environmental Engineering, Seattle, WA, United States, Mark P Waldrop, US Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, CA, United States, Benjamin M Jones, University of Alaska, Fairbanks, Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, United States and Rebecca Bergquist Neumann, University of Washington, Seattle, WA, United States
 
Deep subsurface brines in the polar desert of McMurdo Dry Valleys, Antarctica, revealed by a regional AEM (Airborne ElectroMagnetic) survey (593941)
Slawek M Tulaczyk1, Jill Mikucki2, Esben Auken3, Denys Grombacher4, Hilary A Dugan5, Nikolaj Foged6, Neil Foley7, Ross A Virginia8, Peter T Doran9, Krista F Myers9 and Ricardo Garza Giron7, (1)University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, (2)University of Tennessee, Department of Microbiology, Knoxville, TN, United States, (3)University of Aarhus, Aarhus, Denmark, (4)Aarhus University, Aarhus C, Denmark, (5)University of Wisconsin, Madison, WI, United States, (6)Gaborone, Botswana, (7)University of California Santa Cruz, Santa Cruz, CA, United States, (8)Dartmouth College, Environmental Studies Program, Hanover, NH, United States, (9)Louisiana State University, Geology and Geophysics, Baton Rouge, United States
 
New Estimates of Future Permafrost Extent and Corresponding Carbon Feedbacks (598906)
Oliver W Frauenfeld, Texas A&M University, College Station, TX, United States, Xiaoqing Peng, LZU Lanzhou University, Key Laboratory of Western China's Environmental Systems（Ministry of Education), College of Earth and Environment Sciences, Lanzhou, China and Tingjun Zhang, Key Laboratory of West China's Environment (DOE), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, CHINA, Lanzhou, China
 
Time Series Analyses of Interior Alaska Thermokarst Using Airborne and Terrestrial Lidar (599907)
Christopher A Hiemstra1, Thomas Douglas1, Arthur Gelvin1, Kate Liddle Broberg1, Bruce Cook2 and Dragos A Vas1, (1)Cold Regions Research and Engineering Laboratory Alaska, Fort Wainwright, AK, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States
 
Predictable Soil Stratigraphy of the Upper Thawed Layer in Permafrost Terrain Controls Hydrological Flows and Dynamics (600875)
Michael O'Connor1, M. Bayani Cardenas2, Kindra Diane Nicholaides2, Zach Mungia3, Stephen Bruce Ferencz1, Bethany T Neilson4, Yue WU5, Jingyi Chen6 and George W Kling7, (1)University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States, (2)University of Texas at Austin, Geological Sciences, Austin, TX, United States, (3)University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, United States, (4)Utah State University, Logan, UT, United States, (5)University of Texas at Austin, Department of Aerospace Engineering & Engineering Mechanics, Austin, TX, United States, (6)University of Texas at Austin, Aerospace Engineering & Engineering Mechanics, Austin, TX, United States, (7)University of Michigan, Ecology and Evolutionary Biology, Ann Arbor, MI, United States
 
Understanding the importance of water and ice dynamics at a thermokarst site with novel geophysical observations (601236)
Stephanie R. James1, Burke J Minsley1, Mark P Waldrop2 and Jack W Mcfarland2, (1)USGS Geology, Geophysics, and Geochemistry Science Center, Denver, CO, United States, (2)US Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Menlo Park, CA, United States
 
Environmental interactions and feedbacks of degrading ice wedges and impacts on shallow ground temperatures in a high Arctic polar desert system (604574)
Melissa Karine Ward, McGill University, Montreal, QC, Canada and Wayne H Pollard, McGill Univ, Montreal, QC, Canada
 
Does Sporadic Permafrost Influence Catchment-scale Groundwater Processes? (605855)
Laura Lyon1, Jeffrey M McKenzie1, Pierrick Lamontagne-Halle1, Frances Amyot2 and Sean Kevin Carey3, (1)McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, (2)McGill University, Department of Geography, Montreal, Canada, (3)McMaster University, School of Geography and Earth Sciences, Hamilton, ON, Canada
 
Towards First pan-Arctic Ice-wedge Polygon Map: Understanding the Synergies of Data Fusion and Deep Learning in Automated Ice-wedge Polygon Detection from High Resolution Commercial Satellite Imagery (609769)
Chandi Witharana, University of Connecticut, Natural Resources and the Environment, Storrs, CT, United States, Md Abul Ehsan Bhuiyan, Univeristy of Connecticut, Storrs, CT, United States and Anna K Liljedahl, University of Alaska Fairbanks, Fairbanks, AK, United States
 
Frost Degree-Day Mapping over Permafrost Soils in the Arctic Boreal Zone from Multifrequency Passive Microwave Radiometry (614174)
Nick Steiner, CUNY City College of New York, New York, NY, United States, Kyle C McDonald, City University New York - City College, Earth and Atmospheric Sciences, New York, NY, United States, Erika Podest, NASA Jet Propulsion Laboratory, Pasadena, CA, United States and Aaron Walter Darwin Davitt, The Graduate Center, City University of New York, Earth and Environmental Sciences, New York, NY, United States
 
Changes to streamflow variability observed in continuous permafrost watersheds in remote Arctic location (618034)
Svetlana L. Stuefer1, Douglas L Kane2, Christopher D Arp3, Kelsey Dean4 and Robert Gieck4, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Univ Alaska Fairbanks, Fairbanks, AK, United States, (3)University of Alaska, Fairbanks, Fairbanks, AK, United States, (4)University of Alaska Fairbanks, Fairbanks, United States
 
Insights from Integrated Thermal Hydrology Simulations of an Arctic Watershed with Isolated Permafrost (618656)
James Beisman1, Dylan R Harp1, Elchin E Jafarov2, Cathy Jean Wilson3, Ethan Coon3, Min Chen3 and Julian B Dann4, (1)Los Alamos National Laboratory, Earth and Environmental Sciences Division, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Los Alamos, USA, Earth and Environmental Sciences Division, Boulder, CO, United States, (3)Los Alamos National Laboratory, Los Alamos, NM, United States, (4)Los Alamos National Laboratory, Space Science and Applications, Los Alamos, NM, United States
 
Assessing the Utility of Three Calibration Methods for Digital Elevation Models (DEMs) (620897)
Diana Morgana Miller, University of South Florida Tampa, Tampa, FL, United States and Timothy H Dixon, University of South Florida, School of Geosciences, Tampa, FL, United States
 
Dissolved organic matter dynamics across a gradient of ice-wedge degradation and stabilization, northern Alaska (621098)
Claire Griffin1, Kelcy Kent1, Anna K Liljedahl2, Ronald P Daanen3, Torre Jorgenson4, Mikhail Z Kanevskiy5 and Howard E Epstein6, (1)University of Virginia, Charlottesville, VA, United States, (2)University of Alaska Fairbanks, Fairbanks, AK, United States, (3)DGGS, Fairbanks, AK, United States, (4)Alaska Ecoscience, Fairbanks, AK, United States, (5)University of Alaska, Fairbanks, Fairbanks, AK, United States, (6)University of Virginia Main Campus, Environmental Sciences, Charlottesville, VA, United States
 
Identification of Regions Susceptible to Thermokarst Initiation due to “Climate Priming” on the Alaskan Arctic Coastal Plain (623308)
Bob Bolton, University of Alaska Fairbanks, Fairbanks, AK, United States, Rawser Spicer, International Arctic Research Center, Fairbanks, United States, Genet Helene, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States and Amy Lynn Breen, University of Alaska, Fairbanks, Scenarios Network for Alaska & Arctic Planning, Fairbanks, AK, United States
 
Evaluation of Wildfire Initiated Thermokarst Degradation Using in-situ and Remotely Sensed Data at a site on the Seward Peninsula of Alaska (624362)
Robert Busey1, Go Iwahana2, Bob Bolton1 and Amy Lynn Breen3, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)University of Alaska Fairbanks, International Arctic Research Center, Fairbanks, AK, United States, (3)University of Alaska, Fairbanks, Scenarios Network for Alaska & Arctic Planning, Fairbanks, AK, United States
 
Influences of topography on permafrost meltwater (626507)
Nicholas aksel Wondolowski1, Eitan Shelef2 and Brian F Thomas1, (1)University of Pittsburgh, Pittsburgh, PA, United States, (2)Stanford University, Stanford, CA, United States
 
Tundra wildfire triggers long-term lateral nitrogen loss (633775)
Benjamin W Abbott1, Adrian V Rocha2, Arial Shogren3, Jay P Zarnetske4, Frances Iannucci5, William B Bowden5, Samuel Bratsman6, Rachel Watts7, Randy A Fulweber8, Rebecca Josephine Frei9, Amanda Huebner10, Sarah Ludwig11 and Gregory T Carling6, (1)Brigham Young University, Plant and Wildlife Sciences, Provo, UT, United States, (2)Univ of Notre Dame, Notre Dame, IN, United States, (3)Michigan State University, East Lansing, MI, United States, (4)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, (5)University of Vermont, Burlington, VT, United States, (6)Brigham Young University, Provo, UT, United States, (7)Brigham Young University, Plant and Wildlife Sciences, Provo, United States, (8)University of Alaska Fairbanks, Fairbanks, AK, United States, (9)University of Alberta, Edmonton, Canada, (10)Brigham Young University, Provo, United States, (11)University of Alaska Fairbanks, Biology and Wildlife, Fairbanks, AK, United States
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