1. USGS Oregon Water Science CenterPortland Oregon USA
2. School of Environmental StudiesChina University of GeosciencesWuhan Hubei China
3. Department of Geology and GeophysicsTexas A&M UniversityCollege Station Texas USA
4. Department of Earth and Planetary ScienceUniversity of CaliforniaBerkeley, Berkeley California USA
5. USGS Geology, Minerals, Energy, and Geophysics Science CenterMenlo Park California USA
6. USGS National Research ProgramMenlo Park California USA
7. USGS Forest and Rangeland Ecosystem Science CenterCorvallis Oregon USA