1. U.S. Geological Survey Geologic Hazards Science Center Golden CO USA
2. Kentucky Geological Survey University of Kentucky Lexington KY USA
3. Division of Hydrologic Sciences Desert Research Institute Reno NV USA
4. Department of Environmental Systems Science Soil and Terrestrial Environmental Physics ETH Zürich Zürich Switzerland
5. Department of Forest Engineering, Resources and Management Oregon State University Corvallis OR USA
6. U.S. Geological Survey Western Geographic Science Center Portland OR USA