L. M. Andreassen, Section for Glaciers, Ice and Snow, Norwegian Water Resources and Energy Directorate, Oslo, Norway

M. B. Armstrong, Sea Grant Knauss Fellowship, Arctic Research Program, Global Ocean Monitoring and Observing Program, NOAA, Silver Spring, MD, 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. A. K. Barnett, Resource Assessment and Conservation Engineering Division, Alaska Fisheries Science Center, NOAA, Seattle, WA, USA

B. Barst, University of Calgary, Calgary, AB, Canada

A. Bartsch, b.geos GmbH, Korneuburg, Austria

C. Baughman, U.S. Geological Survey, Alaska Science Center, Anchorage, AK, USA

L. T. Berner, Department of Natural Sciences, University of Alaska Southeast, Juneau, AK, USA; 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. Bishop, University of Alaska Anchorage, Anchorage, AK, USA

J. W. Bjerke, Norwegian Institute for Nature Research, FRAM – High North Research Centre for Climate and the Environment, Tromsø, Norway; Tromsø Arctic-Alpine Botanical Garden, The Arctic University Museum of Norway, UiT The Arctic University of Norway, Tromsø, Norway

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

B. A. Bluhm, Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway

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

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

D. Burgess, Geological Survey of Canada, Ottawa, ON, Canada

M. P. Carey, U.S. Geological Survey, Alaska Science Center, Anchorage, 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

S. G. Crawford, University of Alaska Fairbanks, 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

T. Evinger, Department of Environmental Toxicology, University of California Davis, Davis, CA, 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

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

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

R. Fried, University of Alaska Anchorage, Anchorage, AK, 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

A. R. Gastaldi, University of Alaska Fairbanks, Fairbanks, AK, USA

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

O. M. Gologergen, University of Alaska Anchorage, Anchorage, AK, USA

S. Gonzalez, Climate and Oceanography, Institute of Marine Research, Bergen, Norway; Bjerknes Centre for Climate Research, Bergen, Norway

E. Graham, Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, USA

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

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

K. Hill, National Park Service, Arctic Network, Fairbanks, AK, USA

R. B. Ingvaldsen, Institute of Marine Research, Bergen, Norway; Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway

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

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

J. C. Koch, U.S. Geological Survey, Alaska Science Center, Anchorage, AK, USA

J. Kohler, Norwegian Polar Institute, Tromsø, Norway

Z. M. Labe, Climate Central, Princeton, NJ, USA

H. -M. Ladd, Aleut Community of St. Paul Island Tribal Government, St. Paul Island, AK, 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

B. Luks, Institute of Geophysics, Polish Academy of Sciences, Warsaw, Poland

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 for Space Studies, NASA, New York, NY, USA; Autonomic Integra, New York, NY, USA

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

D. Melovidov, Aleut Community of St. Paul Island Tribal Government, St. Paul Island, AK, 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

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

J. A. O’Donnell, National Park Service, Arctic Network, Anchorage, AK, USA

K. M. Orndahl, School of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, AZ, USA

I. Ortiz, Cooperative Institute for Climate, Ocean, and Ecosystem Studies, University of Washington, Seattle, WA, USA

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

V. M. Padula, Aleut Community of St. Paul Island Tribal Government, St. Paul Island, AK, USA

F. Pálsson, Institute of Earth Sciences, University of Iceland, Reykjavík, Iceland

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

I. V. Polyakov, International Arctic Research Center and College of Natural Science and Mathematics, University of Alaska Fairbanks, Fairbanks, AK, USA

B. A. Poulin, Department of Environmental Toxicology, University of California Davis, Davis, CA, USA

A. Pruitt, Department of Environmental Toxicology, University of California Davis, Davis, CA, USA

K. Rand, Lynker, Leesburg, VA, USA; Resource Ecology and Fisheries Management, Alaska Fisheries Science Center, NOAA, Seattle, WA, USA

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

B. Robson, Aleut Community of St. Paul Island Tribal Government, St. Paul Island, AK, USA

G. Schaepman-Strub, Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland

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

H. Shapiro, UIC Science, Utqiaġvik, AK, USA

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

A. Spear, Resource Assessment and Conservation Engineering Division, Alaska Fisheries Science Center, NOAA, Seattle, WA, USA

S. Starkweather, Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USA; Physical Sciences Laboratory, NOAA, Boulder, CO, USA

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

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

C. Thompson, National Park Service, Arctic Network, Fairbanks, AK, USA

L. Thomson, Queen’s University, Kingston, ON, Canada

J. T. Thorson, Resource Ecology and Fisheries Management, Alaska Fisheries Science Center, NOAA, Seattle, WA, USA

T. Thorsteinsson, Icelandic Meteorological Office, Reykjavík, Iceland

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

C. Waigl, International Arctic Research Center, University of Alaska Fairbanks, Fairbanks AK, USA

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

J. E. Walsh, 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

S. P. Wise, Economic and Social Science Research Program, Alaska Fisheries Science Center, NOAA, Seattle, WA, USA

G. Wolken, University of Alaska Fairbanks, Fairbanks, AK, USA; Alaska Division of Geological and Geophysical Surveys, Fairbanks, AK, USA

B. Wouters, Department of Geoscience and Remote Sensing, Delft University of Technology, Delft, The Netherlands

D. Yang, Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA

Q. Zhou, Goddard Space Flight Center, NASA, Greenbelt, MD, USA; Science Systems and Applications, Inc., Lanham, MD, USA