1. Distinguished Professor and Caroline and William N. Lehrer Distinguished Chair in Water Engineering, Dept. of Biological and Agricultural Engineering, Zachry Dept. of Civil Engineering, Water Management and Hydrological Science, 321 Scoates Hall, MS 2117, Texas A&M Univ., College Station, TX 77843.
2. Postdoctoral Research Associate, Water Management and Hydrological Science, 321E Scoates Hall, MS 2117, Texas A&M Univ., College Station, TX 77843 (corresponding author).
3. Assistant Professor, Glenn Dept. of Civil Engineering, Clemson Univ., Clemson, SC 29634; formerly, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA.