1. Research Scientist, National Center for Computational Hydroscience and Engineering, The Univ. of Mississippi, University, MS 38677.
2. Assistant Professor, Dept. of Civil Engineering, Clemson Univ., Clemson, SC 29634-0911.
3. F.A.P. Barnard Distinguished Professor and Director, National Center for Computational Hydroscience and Engineering, The Univ. ofMississippi, University, MS 38677.