1. Lecturer in Water Engineering, School of Civil Engineering, Univ. of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.; formerly, Postdoctoral Scholar, Dept. of Civil Engineering, Catholic Univ. of America, 620 Michigan Ave. NE, Washington, DC 20064.
2. Graduate Student, Dept. of Civil Engineering, Catholic Univ. of America, Washington, DC 20064.
3. Research Associate, DC Water Resources Research Institute, Univ. of District of Columbia, 4200 Connecticut Ave. NW, Washington, DC 20008.
4. Associate Researcher, Dept. of Civil and Environmental Engineering, Univ. of California, 1 Shields Ave., Davis, CA 95616.
5. Director, DC Water Resources Research Institute, Univ. of District of Columbia, 4200 Connecticut Ave. NW, Washington, DC 20008.
6. Assistant Professor, Dept. of Civil Engineering, Catholic Univ. of America, 620 Michigan Ave. NE, Washington, DC 20064 (corresponding author).