1. Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Irvine, CA 92697.
2. Postdoctoral Fellow, Dept. of Civil and Environmental Engineering, Univ. of California, Irvine, CA 92697.
3. Graduate Student, Dept. of Civil and Environmental Engineering, Univ. of California, Irvine, CA 92697.
4. Laboratory for Hydrospheric Processes, NASA Goddard Space Flight Center, Greenbelt, MD 20771.