1. Water Resources Engineering; Oregon State University; Corvallis Oregon USA
2. Now at Oregon Water Resources Department; Salem Oregon USA
3. School of Civil and Construction Engineering; Oregon State University; Corvallis Oregon USA
4. Alaska Science Center, U.S. Geological Survey; Anchorage Alaska USA
5. Geosciences Department; Colorado State University; Fort Collins Colorado USA
6. Polar Science Center, Applied Physics Laboratory; University of Washington; Seattle Washington USA
7. Geophysical Institute, University of Alaska Fairbanks; Fairbanks Alaska USA
8. Natural Sciences Research Lab, University of Alaska Southeast; Juneau Alaska USA