1. Associate Professor, Dept. of Civil and Environmental Engineering, Pennsylvania State Univ., University Park, PA 16802.
2. Professor, School of Environmental Science, Univ. of East Anglia, Norwich NR47TJ, U.K.
3. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Pennsylvania State Univ., University Park, PA 16802.
4. Principle Hydrologist, Wildland Hydrology, Pagosa Springs, CO 81147.