1. National Center for Atmospheric Research; Boulder Colorado USA
2. Department of Watershed Sciences; Utah State University; Logan Utah USA
3. Civil & Environmental Engineering; University of Washington; Seattle Washington USA
4. Cooperative Institute for Research in Environmental Sciences; Boulder Colorado USA
5. Facultade de Física; Universidade de Santiago de Compostela; Santiago de Compostela Spain
6. Department of Hydrology and Water Resources and Biosphere 2; University of Arizona; Tucson Arizona USA
7. Cold and Arid Regions Environmental and Engineering Research Institute; Lanzhou China
8. Department of Geological Sciences; University of Texas; Austin Texas USA