1. Ph.D. Student, Laboratoire d’etude des Transferts en Hydrologie et Environnement, BP 53, F-38041 Grenoble, Cedex 09, France. E-mail: alexandre.hauet@hmg.inp.fr
2. Research Engineer, IIHR-Hydroscience and Engineering, Univ. of Iowa, 100 C. Maxwell Stanley Hydraulics Laboratory, Iowa City, IA 52242. E-mail: anton-kruger@uiowa.edu
3. Research Engineer, IIHR-Hydroscience and Engineering, Univ. of Iowa, Iowa City, IA 52242. E-mail: witold-krajewski@uiowa.edu
4. Associate Research Engineer, IIHR-Hydroscience and Engineering, Univ. of Iowa, Iowa City, IA 52242. E-mail: allen-bradley@uiowa.edu
5. Research Engineer, IIHR-Hydroscience and Engineering, Univ. of Iowa, Iowa City, IA 52242. E-mail: marian-muste@uiowa.edu