1. Nicholas School of the Environment and Earth Sciences; Duke University; Durham North Carolina USA
2. Disaster Prevention Research Institute; Kyoto Japan
3. River Basin Research Center; Gifu University; Gifu Japan
4. Institute of Tibetan Plateau Research; Chinese Academy of Sciences; Beijing China
5. Department of Information Science; Kochi University; Kochi Japan
6. Cold and Arid Regions Environmental and Engineering Research Institute; Chinese Academy of Sciences; Lanzhou China