1. Research Student, Dept. of Civil Engineering, Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
2. Professor, Dept. of Civil Engineering, Director, CLP Power Wind/Wave Tunnel Facility, Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong (corresponding author).
3. Associate Director, CLP Power Wind/Wave Tunnel Facility, Hong Kong Univ. of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
4. Principal, Cermak Peterka Petersen, Inc., 1415 Blue Spruce Dr., Fort Collins, CO 80524.