Helena Bergstedt¹, Benjamin M Jones², Louise Melanie Farquharson³, Benjamin Gaglioti², Andy Parsekian⁴, Mikhail Z Kanevskiy⁵, Kenneth M Hinkel⁶, Rodrigo Correa Rangel⁴, Noriaki Ohara⁷, Amy Lynn Breen⁸, Donald A Walker³, Andrea Creighton⁴, Trevor C Lantz⁹, Annett Bartsch¹⁰, Ingmar Nitze¹¹, Matthias Fuchs¹², Alexandra Veremeeva¹³, Guido Grosse¹⁴, Pascale Roy-Léveillée¹⁵, Bruce C. Forbes¹⁶ and Timo Kumpula¹⁷, (1)University of Alaska Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States, (2)University of Alaska, Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States, (4)University of Wyoming, Laramie, WY, United States, (5)University of Alaska, Fairbanks, Fairbanks, AK, United States, (6)Michigan Technological University, Houghton, MI, United States, (7)University of Wyoming, Civil and Architectural Engineering, Laramie, WY, United States, (8)University of Alaska, Fairbanks, International Arctic Research Center, Fairbanks, AK, United States, (9)School of Environmental Studies, University of Victoria, Victoria, BC, Canada, (10)b.geos GmbH, Research and Development, Korneuburg, Austria, (11)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (12)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (13)Russian Academy of Sciences, Pushchino, Pushchino, Russia, (14)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research Section, Potsdam, Germany, (15)Laurentian University, Living with Lakes Center, Sudbury, Canada, (16)University of Lapland, Arctic Centre, Rovaniemi, Finland, (17)University of Eastern Finland, Department of Geographical and Historical Studies, Joensuu, Finland

Chandi Witharana¹, Md Abul Ehsan Bhuiyan², Anna K Liljedahl³, Mikhail Z Kanevskiy⁴, Torre Jorgenson⁵, Benjamin M Jones⁶, Ronald P Daanen⁷, Howard E Epstein⁸, Claire G Griffin⁹, Kelcy Kent⁸ and Melissa Karine Ward Jones³, (1)University of Connecticut, Natural Resources and the Environment, Groton, CT, United States, (2)Univeristy of Connecticut, Storrs, CT, United States, (3)Woods Hole Research Center, Falmouth, MA, United States, (4)University of Alaska, Fairbanks, Fairbanks, AK, United States, (5)Alaska Ecoscience, Fairbanks, AK, United States, (6)University of Alaska, Fairbanks, Institute of Northern Engineering, Fairbanks, AK, United States, (7)DGGS, Fairbanks, AK, United States, (8)University of Virginia, Charlottesville, VA, United States, (9)University of Virginia, Department of Environmental Sciences, Charlottesville, United States

Sebastian Uhlemann¹, Baptiste Dafflon², John E Peterson², Craig Ulrich¹, Ian Shirley², Sofia Michail³ and Susan S. Hubbard², (1)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (3)ETH Zurich, Department of Geophysics, Zurich, Switzerland

Jiahua Zhang, Chinese University of Hong Kong, Hong Kong, Hong Kong and Lin Liu, The Chinese University of Hong Kong, Earth System Science Programme, Hong Kong, Hong Kong

Takahiro Abe, Japan Aerospace Exploration Agency, Earth Observation Research Center, Kanagawa, Japan, Go Iwahana, University of Alaska Fairbanks, International Arctic Research Center, Fairbanks, AK, United States and Takeo Tadono, Japan Aerospace Exploration Agency, Earth Observation Research Center, Tsukuba, Japan

Mason Dominico, Wilfrid Laurier University, Waterloo, ON, Canada, William L Quinton, Wilfrid Laurier University, Cold Regions Research Centre, Waterloo, ON, Canada and Ryan Connon, Government of the Northwest Territories, Yellowknife, NT, Canada

Hugo Carreno-Luengo and Christopher S Ruf, University of Michigan Ann Arbor, Climate and Space, Ann Arbor, MI, United States

Sebastian Laboor¹, Sina Muster², Ingmar Nitze¹, Birgit Heim³, Antonie Haas⁴, Andreas Walter⁴, Jörg Matthes⁴, Annett Bartsch⁵ and Guido Grosse^6,7, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (2)Alfred Wegener Institute for Polar and Marine Research, Potsdam, Germany, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Polar Terrestrial Environmental Systems, Potsdam, Germany, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (5)b.geos GmbH, Research and Development, Korneuburg, Austria, (6)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research Section, Potsdam, Germany, (7)University of Potsdam, Institute of Geosciences, Potsdam, Germany

Tiffany Windholz¹, Greg Fiske², Scott Zolkos² and Susan Natali², (1)Oklahoma State University, Stillwater, OK, United States, (2)Woods Hole Research Center, Falmouth, MA, United States

Shannon Dillard, University of Wisconsin Madison, Geography, Madison, WI, United States; Los Alamos National Laboratory, Earth and Environmental Sciences, Los Alamos, NM, United States, Christian G Andresen, Los Alamos National Laboratory, Los Alamos, NM, United States, Adam Collins, Los Alamos National Laboratory, Earth and Environmental Sciences Division, Los Alamos, NM, United States, Julian B Dann, Los Alamos National Laboratory, Space Science and Applications, Los Alamos, NM, United States and Cathy Jean Wilson, Los Alamos National Laboratory, Earth and Environmental Science Division, Los Alamos, NM, United States

Lawrence M Vulis¹, Alejandro Tejedor², Ilya V Zaliapin³, Joel C Rowland⁴ and Efi Foufoula-Georgiou^1,5, (1)University of California Irvine, Department of Civil and Environmental Engineering, Irvine, CA, United States, (2)Sorbonne University Abu Dhabi, Abu Dhabi, United Arab Emirates, (3)University of Nevada, Reno, Reno, NV, United States, (4)Los Alamos National Laboratory, Los Alamos, NM, United States, (5)University of California Irvine, Department of Earth System Science, Irvine, CA, United States

Frances Amyot and Wayne H Pollard, McGill University, Department of Geography, Montreal, QC, Canada

Bob Bolton, University of Alaska Fairbanks, International Arctic Research Center, Fairbanks, AK, United States, Rawser Spicer, International Arctic Research Center, Fairbanks, United States, Helene Genet, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States and Amy Lynn Breen, University of Alaska, Fairbanks, International Arctic Research Center, Fairbanks, AK, United States

Marnie Bryant¹, Adrian A Borsa², Helen Amanda Fricker¹, Roger J Michaelides³, Wesley Neely² and Matthew Siegfried⁴, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States, (3)Colorado School of Mines, Department of Geophysics, Golden, CO, United States, (4)Colorado School of Mines, Geophysics, Golden, CO, United States