1. Postdoctoral Researcher, Hydrologic Research Laboratory, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616 (corresponding author).
2. Distinguished Professor, Hydrologic Research Laboratory, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616.
3. Senior Researcher, Korea Institute of Water and Environment, Korea Water Resources Corporation, Daejeon 305-730, South Korea.
4. Senior Engineer, Bay Delta Office, California Dept. of Water Resources, 1416 Ninth St., Sacramento, CA 95814.
5. Assistant Professor, Dept. of Civil and Architectural Engineering, Univ. of Wyoming, Laramie, WY 82071.
6. State Climatologist, Hydrology and Flood Operations Office, California Dept. of Water Resources, 3310 El Camino Ave., Sacramento, CA 95821.