1. E.C. Davis Professor, Center for Applied Coastal Research, University of Delaware, Newark, DE 19716.
2. Assoc. Professor, Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218.
3. Assoc. Professor, Ocean Engineering Program, Civil Engineering Department, Texas A&M University, College Station, Texas 77843-3136.
4. Professor, Faculty of Science, University of Vigo, Campus de Ourense, 32004 Ourense, Spain.
5. Graduate student, Center for Applied Coastal Research, University of Delaware, Newark, DE 19716.