1. Department of Engineering Systems and Environment University of Virginia Charlottesville VA USA
2. Link Lab, School of Engineering and Applied Science University of Virginia Charlottesville VA USA
3. Now at United States Geological Survey Middleton WI USA
4. Irrigation and Hydraulics Engineering Department Cairo University Giza Egypt
5. Now at Dewberry Fairfax VA USA
6. Department of Computer Science University of Virginia Charlottesville VA USA