1. Alaska Stable Isotope Facility, Water and Environmental Research Center, Institute of Northern Engineering University of Alaska Fairbanks Fairbanks AK USA
2. Institute of Culture and Environment Alaska Pacific University Anchorage AK USA
3. U.S. Geological Survey Geosciences and Environmental Change Science Center Denver CO USA
4. Department of Geology and Environmental Science University of Pittsburgh Pittsburgh PA USA
5. School of Geography and Environmental Science University of Southampton, Highfield Campus Southampton UK
6. Alaska Quaternary Center University of Alaska Fairbanks Fairbanks AK USA
7. Department of Environmental Engineering and Earth Sciences Wilkes University Wilkes Barre PA USA
8. Departments of Biological Sciences and Geosciences Idaho State University Pocatello ID USA
9. College of Fisheries and Ocean Sciences University of Alaska Fairbanks Fairbanks AK USA