1. Associate Professor and Australian Research Council (ARC) Future Fellow, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, NSW 2052, Australia (corresponding author).
2. Caroline & William N. Lehrer Distinguished Chair in Water Engineering and Professor, Dept. of Biological and Agricultural Engineering and Dept. of Civil and Environmental Engineering, Texas A&M Univ., College Station, TX 77843-2117.
3. Professor, Center for Middle Eastern Studies and Dept. of Water Resources Engineering, Lund Univ., P.O. Box 118, S-22100 Lund, Sweden.
4. Ph.D. Student, School of Civil and Environmental Engineering, Univ. of New South Wales, Sydney, NSW 2052, Australia.