1. Ph.D. Candidate, School of Water Resources and Hydropower Engineering, Wuhan Univ., Wuhan, Hubei 430072, China.
2. Professor, School of Water Resources and Hydropower Engineering, Wuhan Univ., Wuhan, Hubei 430072, China (corresponding author).
3. Professor, School of Water Resources and Hydropower Engineering, Wuhan Univ., Wuhan, Hubei 430072, China.
4. Bureau of Hydrology, Changjiang Water Resources Commission, Wuhan, Hubei 430010, China.