1. Ph.D. Candidate, State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan Univ., 8 Donghu South Rd., Wuhan 430072, P.R. China.
2. Professor, Dept. of Civil and Environmental Engineering, Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (corresponding author).
3. Postdoctoral Fellow, Dept. of Civil and Environmental Engineering, Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
4. Professor, State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan Univ., 8 Donghu South Rd., Wuhan 430072, P.R. China.