1. Professor, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, College of Hydrology and Water Resources, Hohai Univ., Nanjing 210098, China.
2. Ph.D. Student, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, College of Hydrology and Water Resources, Hohai Univ., Nanjing 210098, China (corresponding author).
3. Professor, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, College of Hydrology and Water Resources, Hohai Univ., Nanjing 210098, China; and Dept. of Geoscience, Univ. of Nevada, Las Vegas, NV 89154.
4. Associate Professor, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, College of Hydrology and Water Resources, Hohai Univ., Nanjing 210098, China.