1. Laboratory of Hydraulics Hydrology and Glaciology ETH Zürich Zürich Switzerland
2. Swiss Federal Institute for Forest Snow and Landscape Research Zürich Switzerland
3. Key Laboratory of Mountain Hazards and Surface Process Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu China
4. University of Chinese Academy of Sciences Beijing China
5. Institut de Physique du Globe de Strasbourg University of Strasbourg/EOST Strasbourg France