1. Graduate Researcher, UT Water Research Laboratory, Dept. of Civil Engineering, Utah State Univ., Logan, UT 84322-8200.
2. Research Associate Professor, UT Water Research Laboratory, Dept. of Civil Engineering, Utah State Univ., Logan, UT 84322-8200 (corresponding author).
3. Research Associate Professor, UT Water Research Laboratory, Dept. of Civil Engineering, Utah State Univ., Logan, UT 84322-8200.