1. Graduate Research Assistant, IIHR-Hydroscience and Engineering, Univ. of Iowa, Iowa City, IA 52242.
2. Associate Professor, IIHR-Hydroscience and Engineering, Univ. of Iowa, Iowa City, IA 52242; formerly, Assistant Professor, Dept. of Civil and Environmental Engineering, Washington State Univ., 101 Sloan Hall, Pullman, WA 99164-2910.
3. Assistant Professor, Dept. of Bus. Comp. Info. Sci., Univ. of North Texas, Denton, TX 76203.
4. Formerly, Hydraulic Research Engineering, U.S. Geological Survey/LSC/CAFRC, Environmental Hydraulics Group, One Migratory Way, Turners Falls, MA 01376.