H. Alcock, Département de Géographie, Université de Montréal, Montréal, QC, Canada

K. Arndt, Woodwell Climate Research Center, Falmouth, MA, USA

T. G. Askjaer, Danish Meteorological Institute, Copenhagen, Denmark

J. J. Assmann, Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland

T. J. Ballinger, International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, USA

L. T. Berner, School of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA

U. S. Bhatt, Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, USA

S. Bigalke, Department of Geography, Portland State University, Portland, OR, USA

A. Bliss, Goddard Space Flight Center, NASA, Greenbelt, MD, USA

J. E. Box, Geological Survey of Denmark and Greenland, Copenhagen, Denmark

B. Brettschneider, National Weather Service Alaska Region, NOAA, Anchorage, AK, USA

A. Bryan, Arctic Marine Mammal Program, Alaska Department of Fish and Game, Fairbanks, AK, USA

L. W. Cooper, Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, University of Maryland, Solomons, MD, USA

A. Crawford, Department of Environment and Geography, University of Manitoba, Winnipeg, MB, Canada

J. Crawford, Arctic Marine Mammal Program, Alaska Department of Fish and Game, Fairbanks, AK, USA

B. Decharme, Centre National de Recherches Météorologiques, Météo-France, Toulouse, France

C. Derksen, Climate Research Division, Environment and Climate Change Canada, Toronto, ON, Canada

D. Divine, Norwegian Polar Institute, Fram Centre, Tromsø, Norway

M. L. Druckenmiller, National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA

A. Elias Chereque, Department of Physics, University of Toronto, Toronto, ON, Canada

H. E. Epstein, Department of Environmental Sciences, University of Virginia, Charlottesville, VA, USA

E. S. Euskirchen, Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, USA; Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK, USA

G. Falvo, Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, USA

S. Farrell, Department of Geographical Sciences, University of Maryland, College Park, MD, USA

R. S. Fausto, Geological Survey of Denmark and Greenland, Copenhagen, Denmark

G. Fiske, Woodwell Climate Research Center, Falmouth, MA, USA

B. C. Forbes, Arctic Centre, University of Lapland, Rovaniemi, Finland

S. Fox, Ittaq Heritage and Research Centre, Kangiqtugaapik (Clyde River), NU, Canada

K. E. Frey, Graduate School of Geography, Clark University, Worcester, MA, USA

G. V. Frost, Alaska Biological Research, Inc., Fairbanks, AK, USA

C. Garcia, Arctic Research Program, Global Ocean Monitoring and Observing Program, NOAA, Silver Spring, MD, USA

S. Gerland, Norwegian Polar Institute, Fram Centre, Tromsø, Norway

S. J. Goetz, School of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA

J. M. Grebmeier, Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, University of Maryland, Solomons, MD, USA

A. Gunn, CircumArctic Rangifer Monitoring and Assessment (CARMA), Whitehorse, YT, Canada

E. Hanna, Department of Geography and Lincoln Climate Research Group, University of Lincoln, Lincoln, UK

S. Hendricks, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany

G. Hould-Gosselin, Département de Géographie, Université de Montréal, Montréal, QC, Canada

J. Hung, Woodwell Climate Research Center, Falmouth, MA, USA

M. Jaypoody, Ittaq Heritage and Research Centre, Kangiqtugaapik (Clyde River), NU, Canada

K. Joly, National Park Service, Fairbanks, AK, USA

L. Kaleschke, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany

S. R. Karlsen, NORCE Norwegian Research Centre AS, Tromsø, Norway

A. Kholodov, Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, USA

S. -J. Kim, Korea Polar Research Institute, Incheon, Republic of Korea

Z. M. Labe, Geophysical Fluid Dynamics Laboratory, NOAA, Princeton, NJ, USA

R. Lader, International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, USA

M. J. Lara, Department of Plant Biology, University of Illinois, Urbana, IL, USA; Department of Geography, University of Illinois, Urbana, IL, USA

B. D. Loomis, Goddard Space Flight Center, NASA, Greenbelt, MD, USA

E. López-Blanco, Department of Ecoscience and Arctic Research Centre, Aarhus University, Roskilde, Denmark

K. Luojus, Arctic Research Centre, Finnish Meteorological Institute, Helsinki, Finland

M. J. Macander, Alaska Biological Research, Inc., Fairbanks, AK, USA

R. Í. Magnússon, Plant Ecology and Nature Conservation Group, Wageningen University & Research, Wageningen, Netherlands

K. D. Mankoff, Goddard Institute of Space Studies, NASA, New York, NY, USA; Autonomic Integra, New York, NY, USA

L. Manzo, Kivalliq Inuit Association, Rankin Inlet, NU, Canada

B. C. Medley, Goddard Space Flight Center, NASA, Greenbelt, MD, USA

W. N. Meier, National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA

P. M. Montesano, Goddard Space Flight Center, NASA, Greenbelt, MD, USA; ADNET Systems, Inc., Bethesda, MD, USA

T. A. Moon, National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA

T. L. Mote, Department of Geography, University of Georgia, Athens, GA, USA

H. Motrøen Gjelten, Norwegian Meteorological Institute, Oslo, Norway

L. R. Mudryk, Climate Research Division, Environment and Climate Change Canada, Toronto, ON, Canada

S. M. Natali, Woodwell Climate Research Center, Falmouth, MA, USA

C. S. R. Neigh, Goddard Space Flight Center, NASA, Greenbelt, MD, USA

J. Olnes, Arctic Marine Mammal Program, Alaska Department of Fish and Game, Fairbanks, AK, USA

J. E. Overland, Pacific Marine Environmental Laboratory, NOAA, Seattle, WA, USA

J. Pellissey, Wek’èezhìi Renewable Resources Board, Yellowknife, NT, Canada

D. Perovich, Thayer School of Engineering, Dartmouth College, Hanover, NH, USA

A. Petty, Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA

G. K. Phoenix, School of Biosciences, University of Sheffield, Sheffield, UK

K. Poinar, University at Buffalo, Buffalo, NY, USA

S. Potter, Woodwell Climate Research Center, Falmouth, MA, USA

L. Quakenbush, Arctic Marine Mammal Program, Alaska Department of Fish and Game, Fairbanks, AK, USA

R. Ricker, NORCE Norwegian Research Centre, Tromsø, Norway

B. Rogers, Woodwell Climate Research Center, Falmouth, MA, USA

V. Romanovsky, Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, USA

D. Russell, CircumArctic Rangifer Monitoring and Assessment (CARMA), Whitehorse, YT, Canada

E. A. G. Schuur, Center for Ecosystem Science and Society, Northern Arizona University, Flagstaff, AZ, USA

M. C. Serreze, National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA

B. E. Smith, University of Washington, Seattle, WA, USA

O. Sonnentag, Département de Géographie, Université de Montréal, Montréal, QC, Canada

R. Stimmelmayr, North Slope Borough, Department of Wildlife Management, Utqiaġvik, AK, USA; Institute of Arctic Biology, University of Alaska, Fairbanks, AK, USA

L. V. Stock, Cryospheric Sciences Laboratory, Goddard Space Flight Center, NASA, Greenbelt, MD, USA

M. Tedesco, Lamont-Doherty Earth Observatory, Columbia Climate School, Columbia University, Palisades, NY, USA

R. L. Thoman, Alaska Center for Climate Assessment and Policy, University of Alaska Fairbanks, Fairbanks, AK, USA; International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, USA

X. Tian-Kunze, Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany

M. -L. Timmermans, Department of Earth and Planetary Sciences, Yale University, New Haven, CT, USA

H. Tømmervik, Norwegian Institute for Nature Research, FRAM – High North Research Centre for Climate and the Environment, Tromsø, Norway

J. Tulagak, Kivalliq Inuit Association, Rankin Inlet, NU, Canada

A. -M. Virkkala, Woodwell Climate Research Center, Falmouth, MA, USA

C. Waigl, University of Alaska Fairbanks, Fairbanks, AK, USA

D. A. Walker, Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, AK, USA

J. E. Walsh, Alaska Center for Climate Assessment and Policy, University of Alaska Fairbanks, Fairbanks, AK, USA; International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, AK, USA

M. Wang, Cooperative Institute for Climate, Ocean, and Ecosystem Studies, University of Washington, Seattle, WA, USA; Pacific Marine Environmental Laboratory, NOAA, Seattle, WA, USA

M. Webster, Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, WA, USA

A. V. Whiting, Native Village of Kotzebue, AK, USA

D. Yang, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, TN, USA