1. Professor, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai Univ., Nanjing 210098, China; and Dept. of Geoscience, Univ. of Nevada Las Vegas, Las Vegas, NV 89154 (corresponding author).
2. Graduate Assistant, Dept. of Geoscience, Univ. of Nevada Las Vegas, Las Vegas, NV 89154.
3. Associate Professor, Dept. of Civil and Architectural Engineering, Univ. of Wyoming, Laramie, WY 82071.
4. Lecturer, College of Hydrology and Water Resources, Hohai Univ., Nanjing 210098, China.
5. Professor, College of Hydrology and Water Resources, Hohai Univ., Nanjing 210098, China.
6. Professor, Dept. of Earth and Environmental Sciences, Univ. of Waterloo, Waterloo, ON, Canada N2L 3G1.