1. Graduate Research Assistant, Dept. of Civil and Architectural Engineering, Univ. of Wyoming, Laramie, WY 82071.
2. Assistant Professor, Dept. of Civil and Environmental Engineering, Univ. of Tennessee, Knoxville, TN 37996 (corresponding author).
3. Professor, Office of Water Programs, Univ. of Wyoming, Laramie, WY 82071.
4. Director, Office of Water Programs, Univ. of Wyoming.
5. Research Professor, Wyoming Geographic Information Science Center (WyGISC) and Dept. of Botany, Univ. of Wyoming, Laramie, WY 82071.