1. PhD Candidate, Dept. of Civil and Environmental Engineering, Univ. of Alberta, Edmonton, AB, Canada, T6G 2W2.
2. Professor, Dept. of Civil and Environmental Engineering, Univ. of Alberta, Edmonton, AB, Canada T6G 2W2 (corresponding author).
3. Senior Engineer, Dept. of Hydraulics, China Institute of Water Resources and Hydropower Research, A-1 Fuxing Rd., Beijing 100038, China.
4. Professor, Dept. of Hydraulics, China Institute of Water Resources and Hydropower Research, A-1 Fuxing Rd., Beijing 100038, China.