1. Professor Emeritus, Civil and Coastal Engineering Dept., Univ. of Florida, Gainesville, FL 32607; and President of OEA, Inc., 100 SE 75th St., Suite 107, Gainesville, FL 32607.
2. Professor, Civil and Environmental Engineering Dept., Univ. of Auckland, Auckland 1142, New Zealand (corresponding author).
3. Coastal/Hydraulics Engineer, OEA, Inc., 100 SE 75th St., Suite 107, Gainesville, FL 32607.