Vanessa Lougheed, Alina Spera and Lizette Gonzalez, University of Texas at El Paso, El Paso, TX, United States

Kimberly Wickland, USGS, Boulder, CO, United States, Torre Jorgenson, Alaska Ecoscience, Fairbanks, AK, United States, Joshua Koch, USGS Alaska Science Center, Anchorage, United States, Mikhail Z Kanevskiy, University of Alaska, Fairbanks, Fairbanks, AK, United States and Robert G Striegl, USGS WRD, Boulder, CO, United States

Robert Schwefel, UC Santa Barbara, Earth Research Institute, Santa Barbara, CA, United States, Joao H. Amaral, University of California Santa Barbara, Santa Barbara, CA, United States, Alicia Cortés, University of California, Santa Barbara, Santa Barbara, United States, Sally MacIntyre, Univ California Santa Barbara, Marine Science Institute, Santa Barbara, CA, United States and John M Melack, Univ California Santa Barbara, Santa Barbara, CA, United States

Melanie Martyn Rosco¹, Joshua Dean², Alberto V. Borges³, Jorien Vonk¹ and A Johannes Dolman⁴, (1)Vrije Universiteit Amsterdam, Amsterdam, Netherlands, (2)University of Liverpool, Liverpool, United Kingdom, (3)University of Liege, Chemical Oceanography Unit, Liege, Belgium, (4)Vrije Universiteit Amsterdam, Department of Earth Sciences, Amsterdam, Netherlands

Alina Spera and Vanessa Lougheed, University of Texas at El Paso, El Paso, TX, United States

Fenix Garcia Tigreros, University of Washington, Seattle, WA, United States, Catherine Kuhn, University of Washington Seattle Campus, School of Environmental and Forestry Sciences, Seattle, WA, United States, Mark Dornblaser, US Geological Survey, Boulder, CO, United States, Kimberly Wickland, US Geological Survey, Water Resources Mission Area, Boulder, CO, United States, Martin Kurek, Florida State University, Tallahassee, United States, Ethan D. Kyzivat, Brown University, Providence, RI, United States, Robert G Spencer, Florida State University, Earth, Ocean and Atmospheric Science, Tallahassee, FL, United States, Robert G Striegl, USGS WRD, Boulder, CO, United States and David E Butman, Yale University, Hamden, CT, United States

Johan Scheller, Torben R Christensen and Mikhail Mastepanov, Aarhus University, Department of Bioscience, Arctic Research Centre, Aarhus C, Denmark

Efrén López Blanco^1,2, Marcin Jackowicz-Korczynski^2,3, Mikhail Mastepanov^4,5, Kirstine Skov², Andreas Westergaard-Nielsen⁶, Mathew Williams⁷ and Torben R Christensen⁴, (1)Greenland Institute of Natural Resources, Department of Environment and Minerals, Nuuk, Greenland, (2)Aarhus University, Department of Bioscience, Arctic Research Centre, Roskilde, Denmark, (3)Lund University, Physical Geography and Ecosystem Sciences, Lund, Sweden, (4)Aarhus University, Department of Bioscience, Arctic Research Centre, Aarhus C, Denmark, (5)University of Oulu, Oulanka Research Station, Oulu, Finland, (6)University of Copenhagen, Department for Geosciences and Natural Resource Management, Cenperm, København K, Denmark, (7)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom

Lona van Delden¹, Timo Vesala², Eeva-Stiina Tuittila³ and Claire C Treat¹, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (2)University of Helsinki, Institute for Atmospheric and Earth System Research / Physics, Faculty of Science, Helsinki, Finland, (3)University of Eastern Finland, School of Forest Sciences, Joensuu, Finland

Jacqueline KY Hung and Neal A Scott, Queen's University, Geography and Planning, Kingston, ON, Canada

Patrick Sullivan¹, Madeline Stokes¹, Cameron Kyle McMillan² and Michael N Weintraub², (1)University of Alaska Anchorage, Environment and Natural Resources Institute, Anchorage, AK, United States, (2)University of Toledo, Environmental Sciences, Toledo, OH, United States

Mikhail Mastepanov^1,2, Marcin Jackowicz-Korczynski^3,4, Johan Scheller¹ and Torben R Christensen¹, (1)Aarhus University, Department of Bioscience, Arctic Research Centre, Aarhus C, Denmark, (2)University of Oulu, Oulanka Research Station, Oulu, Finland, (3)Aarhus University, Department of Bioscience, Arctic Research Centre, Roskilde, Denmark, (4)Lund University, Physical Geography and Ecosystem Sciences, Lund, Sweden

Melanie Burnett, University of Alaska Fairbanks, Biology and Wildlife, Fairbanks, AK, United States and Tamara Harms, University of Alaska-Fairbanks, Fairbanks, AK, United States

Katharina Jentzsch^1,2, Julia Boike³, Norbert Pirk⁴ and Alexander Schulz¹, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (2)University of Cologne, Geophysics and Meteorology, Cologne, Germany, (3)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (4)University of Oslo, Oslo, Norway

Christian Juncher Jørgensen, Aarhus University, Department of Bioscience, Arctic Environment, Aarhus C, Denmark and Jesper Riis Christiansen, University of Copenhagen, Department of Geosciences and Natural Resource Management, København K, Denmark