1. a Department of Civil & Environmental Engineering and IIHR-Hydroscience & Engineering , The University of Iowa , Iowa City, IA, 52242, USA
2. b Department of Civil & Environmental Engineering and IIHR-Hydroscience & Engineering , The University of Iowa , Iowa City, IA, 52242, USA Phone: E-mail:
3. c Department of Civil & Environmental Engineering and IIHR-Hydroscience & Engineering , The University of Iowa , Iowa City, IA, 52242, USA Phone: E-mail:
4. d Department of Civil & Environmental Engineering and IIHR-Hydroscience & Engineering , The University of Iowa , Iowa City, IA, 52242, USA Fax: E-mail: