1. Professor, Dept. of Civil Engineering, Univ. of Miami, Coral Gables, FL 33124.
2. Assistant Professor, Albany State Univ., Albany, GA 31705.
3. Research Hydrologist, USDA-ARS, Tifton, GA 31793.
4. Assistant Research Scientist, Dept. of Biological and Agricultural Engineering, Univ. of Georgia, Tifton, GA 31793.