1. Institute of Northern Engineering University of Alaska Fairbanks Fairbanks Alaska USA
2. Alaska Ecoscience Fairbanks Alaska USA
3. The Woodwell Research Center Falmouth Massachusetts USA
4. Geography Department Université de Montréal Montréal Canada
5. Earth Cryosphere Institute of Tyumen Scientific Center SB RAS Tyumen Russia
6. Tyumen State University Tyumen Russia