1. Water and Environmental Research Center University of Alaska Fairbanks Fairbanks Alaska USA
2. Alaska Science Center U.S. Geological Survey Anchorage Alaska USA
3. Helmholtz Centre for Polar and Marine Research Alfred Wegener Institute Potsdam Germany
4. Geophysical Institute University of Alaska Fairbanks Fairbanks Alaska USA
5. Department of Geography University of Cincinnati Cincinnati Ohio USA
6. Department of Geology and Geophysics University of Wyoming Laramie Wyoming USA