1. Eawag, Swiss Federal Institute of Aquatic Science and Technology, 8600 Dübendorf, Switzerland
2. Department of Civil, Environmental and Geomatic Engineering, ETH Zürich, 8093 Zürich, Switzerland
3. Geopraevent AG, 8045 Zürich, Switzerland
4. Department of Civil and Environmental Engineering, University of California Davis, Davis, California 95616-5270, United States
5. WSL, Swiss Federal Institute of Forest, Snow and Landscape Research, 8903 Birmensdorf, Switzerland