EP004
Changing Permafrost Landscapes
Session ID#: 161388
Session Description:
Permafrost underlies a large portion of Earth’s surface in high latitude and high altitude landscapes. This broad spatial coverage coupled with global warming and intensifying variability implies that climate driven landscape change in these regions has significant implications for terrestrial and nearshore marine environments, infrastructure, communities, and possibly Earth’s climate. Permafrost exerts a strong control on landscape dynamics, various geomorphic processes, and a variety of physical feedback mechanisms across a range of spatial and temporal scales. However, the details of how permafrost specifically influences geomorphic processes from the local to landscape scale are not well constrained. Furthermore, the effects of changing environmental drivers on permafrost, landscapes, and coupled future trajectories is difficult to predict. This session aims to bring together researchers focusing on changing permafrost landscapes to understand how permafrost, landscapes, and the feedbacks that shape them are responding to a changing climate. We welcome contributions studying permafrost landscapes via field observations, remote sensing, experimental, and modeling techniques.
Index Terms:
0702 Permafrost [CRYOSPHERE]
1625 Geomorphology and weathering [GLOBAL CHANGE]
1823 Frozen ground [HYDROLOGY]
1824 Geomorphology: general [HYDROLOGY]
Primary Convener: Anastasia Piliouras, Pennsylvania State University Main Campus, University Park, PA, United States
Conveners: Joanmarie Del Vecchio, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, Rachel Glade, University of Rochester, Earth and Environmental Sciences, Rochester, NY, United States and Shawn M Chartrand, Simon Fraser University, School of Environmental Science, Burnaby, BC, Canada
Drivers, dynamics and impacts of changing Arctic coasts (Invited) (1045026)
Anna M. Irrgang, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, Mette Bendixen, McGill University, Department of Geography, Montreal, QC, Canada, Louise Melanie Farquharson, Geophysical Institute Permafrost Laboratory, University of Alaska, Fairbanks, Fairbanks, United States, Paul Overduin, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Potsdam, Germany, Hugues Lantuit, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Permafrost Research Section, Potsdam, Germany and Benjamin M Jones, University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, United States
High-resolution mapping of discontinuous permafrost on the Seward Peninsula, Alaska using shallow geophysics and remote sensing (1063884)
Evan Thaler1, Sebastian Uhlemann2, Joel C Rowland1, Stijn Wielandt3, Ian Shirley3, John Lamb4, Baptiste Dafflon3 and Jonathon P Schwenk5, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, United States, (4)Stanford University, Department of Earth System Science, Stanford, United States, (5)Los Alamos National Laboratory, Earth and Environmental Sciences, Los Alamos, United States
Periglaciation in the Appalachian Highlands, Eastern USA (1064562)
Raven Jezell Mitchell, Michigan State University, Department of Geography, Environment, and Spatial Sciences, East Lansing, MI, United States, Frederick E Nelson, Northern Michigan University, Department of Earth, Environmental, and Geographical Sciences, Marquette, United States and Michael T. Walegur, Moorpark College, Department of Chemistry and Earth Sciences, Moorpark, CA, United States
Changes In Permafrost Hydrology Parameterizations Lead To Different Global Climates But Similar CH4 Emissions (1065815)
Victor Brovkin1,2, Philipp de Vrese1, Tobias Stacke1, Thomas Kleinen1 and Veronika Gayler1, (1)Max Planck Institute for Meteorology, Hamburg, Germany, (2)Universität Hamburg, Center for Earth System Research and Sustainability, Hamburg, Germany
A Rock Glacier Inventory of the Central Alaska Range, Alaska (1076450)
Kaytan Kelkar1, Louise Melanie Farquharson1, Margaret M. Darrow2, Daniel H Mann3, Simon Zwieback4 and Denny Capps5, (1)Geophysical Institute Permafrost Laboratory, University of Alaska, Fairbanks, Fairbanks, United States, (2)Department of Civil, Geological, and Environmental Engineering, University of Alaska, Fairbanks, Fairbanks, United States, (3)Department of Geosciences, University of Alaska, Fairbanks, Fairbanks, United States, (4)Geophysical Institute, University of Alaska, Fairbanks, Fairbanks, United States, (5)Denali National Park, Denali National Park, United States
GLACIAL ISOSTATIC ADJUSTMENT SPEEDS PAST AND FUTURE ARCTIC SUBSEA PERMAFROST THAW (1077889)
Roger Creel1, Frederieke Miesner2, Stiig Wilkenskjeld3, Jacqueline Austermann1 and Paul Overduin4, (1)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (3)Max Planck Institute for Meteorology, Hamburg, Germany, (4)Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Potsdam, Potsdam, Germany
Saturation Dynamics Along Thawing Continuous Permafrost Hillslopes (1089656)
Sarah G. Evans1, Sarah Godsey2, Clara Chew3, Brandon Yokeley2, Key Hatch4, Emma Ferm4, Rachel H. Harris1, Benjamin T Crosby2, Michael N Gooseff5, Aaron A. Mohammed6 and William B Bowden7, (1)Appalachian State University, Department of Geological and Environmental Sciences, Boone, NC, United States, (2)Idaho State University, Department of Geosciences, Pocatello, United States, (3)University Corporation for Atmospheric Research, Boulder, CO, United States, (4)Appalachian State University, Department of Geological and Environmental Sciences, Boone, United States, (5)University of Colorado Boulder, Civil, Environmental, and Architectural Engineering, Boulder, United States, (6)McGill University, Earth and Planetary Sciences, Montreal, Canada, (7)University of Vermont, Rubenstein School of Environment and Natural Resources, Burlington, VT, United States
Ground temperature sets drainage density in the Arctic (1116693)
Joanmarie Del Vecchio1, Marisa C Palucis1, Colin Meyer2 and Rebecca Risch3, (1)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (2)Dartmouth College, Thayer School of Engineering, Hanover, United States, (3)Dartmouth College, Hanover, United States
Sensitivity of Erosion-rate in Permafrost Landscapes to Changing Climatic and Environmental Conditions Based on Lake Sediments from Northwestern Alaska (1123972)
Eitan Shelef1, Melissa Griffore2, Sam Mark3, Tim Coleman4, Nicholas aksel Wondolowski2, G Everett Lasher5 and Mark B Abbott6, (1)University of Pittsburgh, Pittsburgh, United States, (2)University of Pittsburgh, Pittsburgh, PA, United States, (3)University of Pittsburgh, Geology and Environmental Science, Pittsburgh, PA, United States, (4)University of Southern California, Marshall School of Business, Los Angeles, United States, (5)Northwestern University, Earth and Planetary Sciences, Evanston, IL, United States, (6)University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, PA, United States
Potential Talik Development Along Continuous Permafrost Hillslopes On The North Slope Of Alaska, USA (1126723)
Rachel H. Harris1, Sarah G. Evans1, Scott T Marshall2, Emma Ferm2, Key Hatch2, Brandon Yokeley3 and Sarah Godsey3, (1)Appalachian State University, Department of Geological and Environmental Sciences, Boone, NC, United States, (2)Appalachian State University, Department of Geological and Environmental Sciences, Boone, United States, (3)Idaho State University, Department of Geosciences, Pocatello, United States
Geomorphologic Characteristics and Thermal State of Jingxian Rock Glacier on the Qinghai-Tibet Plateau (1135353)
Yan Hu1, Lin Liu2, Erji Du3, Guiqian Yang4, Xiaofan Zhu4, Xin Ma4, Lin Zhao5, Xuchun Yan4, Tonghua Wu6 and Changwei Xie3, (1)The Chinese University of Hong Kong, Institute of Environment, Energy and Sustainability, Hong Kong, Hong Kong, (2)The Chinese University of Hong Kong, Earth System Science Programme, Hong Kong, China, (3)Cryosphere Research Station on Qinghai-Xizang Plateau, State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China, (4)Cryosphere Research Station on the Qinghai-Tibet Plateau, State Key Laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China, (5)NUIST Nanjing University of Information Science and Technology, School of Geographical Sciences, Nanjing, China, (6)CAREERI/CAS Cold and Arid Regions Environmental and Engineering Research Institute, Lanzhou, China
Icy Riverine Landscapes: Mobilization and Fate of Carbon-rich Sediment in a Periglacial Braided River Corridor (1136170)
Suzanne P Anderson, University of Colorado, INSTAAR and Department of Geological Sciences, Boulder, United States, Marisa Nicole Repasch, University of Colorado Boulder, Institute of Arctic and Alpine Research, Boulder, United States, Irina Overeem, University of Colorado, Institute of Arctic and Alpine Research and Department of Geological Sciences, Boulder, CO, United States, Josie Arcuri, University of Colorado Boulder, INSTAAR and Department of Geological Sciences, Boulder, United States, Robert S Anderson, University of Colorado, INSTAAR and Department of Geological Sciences, Boulder, CO, United States and Joshua Koch, USGS Alaska Science Center, Anchorage, United States
Permafrost in Northern Hemisphere are shrinking at higher rate than in Southern Hemisphere. (1143139)
Kirti Kumar Mahanta1, Ipshita Priyadarsini Pradhan1, Sharad Kumar Gupta2 and Dericks P Shukla1, (1)Indian Institute of Technology Mandi, School of Civil and Environmental Engineering, Mandi, India, (2)Tel Aviv University, School of Environment and Earth Sciences, Faculty of Exact Sciences, Tel Aviv, Israel
Transient Hillslope Responses to Permafrost Loss (1152977)
Joel C Rowland1, Evan Thaler1, Joanmarie Del Vecchio2, Rachel Glade3, Sebastian Uhlemann4 and Baptiste Dafflon5, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, (3)University of Rochester, Earth and Environmental Sciences, Rochester, NY, United States, (4)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (5)Lawrence Berkeley National Laboratory, Berkeley, United States
Direct Monitoring of Eroding Permafrost Riverbanks in the Yukon River (1183450)
Kieran Bernard Jiamin Dunne1, Madison Douglas2, Justin Anh-Khoa Nghiem3, James L Dickson2 and Michael P. Lamb4, (1)California Institute of Technology, Pasadena, CA, United States, (2)California Institute of Technology, Pasadena, United States, (3)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, (4)California Institute of Technology, Geological and Planetary Sciences, Pasadena, United States
Permafrost River Banks Shaped by Thaw-Dependent Fluvial Erosion (1191108)
Josie Arcuri, University of Colorado Boulder, INSTAAR and Department of Geological Sciences, Boulder, United States, Irina Overeem, University of Colorado, Institute of Arctic and Alpine Research and Department of Geological Sciences, Boulder, CO, United States, Marisa Nicole Repasch, University of Colorado Boulder, Institute of Arctic and Alpine Research, Boulder, United States, Suzanne P Anderson, University of Colorado, INSTAAR and Department of Geological Sciences, Boulder, United States, Robert S Anderson, University of Colorado, INSTAAR and Department of Geological Sciences, Boulder, CO, United States and Joshua Koch, USGS Alaska Science Center, Anchorage, United States
Feedbacks between geomorphic processes and permafrost dynamics on soil-mantled hillslopes of Interior Alaska, USA (1192560)
Zena V Robert, Montana State University, Bozeman, MT, United States, Jean Dixon, Montana State University, Earth Sciences, Bozeman, MT, United States and Stephanie A Ewing, Montana State University, Department of Land Resources and Environmental Sciences, Bozeman, United States
