1. Graduate Research Assistant, Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USA Email:
2. (IAHR Member), Hydraulic Engineer, National Sedimentation Laboratory, Agricultural Research Service, United States Department of Agriculture, Oxford, MS 38655, USA Email:
3. (IAHR Member), Provost, Universidad de Ingenieria y Tecnologia (UTEC), Lima, Peru. Executive Director, Water Research Center Email:
4. Researcher, Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico, Ciudad de Mexico, Mexico