1. Research Hydraulic Engineer, National Sedimentation Laboratory, USDA, Agricultural Research Service, P.O. Box 1157, Oxford, MS 38655. E-mail: rkuhnle@ars.usda.gov
2. Research Associate Professor, National Center for Computational Hydroscience and Engineering, The Univ. of Mississippi, University, MS 38677. E-mail: jia@ncche.olemiss.edu
3. Supervisor, Research Hydraulic Engineer, National Sedimentation Laboratory, USDA, Agricultural Research Service, P.O. Box 1157, Oxford, MS 38655. E-mail: calonso@ars.usda.gov