1. Professor, Dept. of Civil Engineering, Univ. of Saskatchewan, 57 Campus Dr., Saskatoon SK, Canada S7N 5A7; presently, Visiting Professor, IIHR-Hydroscience & Engineering, Univ. of Iowa, Iowa City, IA 52242-1585.
2. Director, IIHR-Hydroscience & Engineering and Univ. of Iowa Foundation, Distinguished Professor, Univ. of Iowa, Iowa City, IA 52242-1585.