1. Junior Specialist, Dept. of Land, Air, and Water Resources, Univ. of California, 1 Shields Ave., Davis, CA 95616-8627.
2. Senior Land and Water Use Scientist, California Dept. of Water Resources, P.O. Box 942836, Sacramento, CA 94236-0001.
3. Extension Biometeorologist, Dept. of Land, Air, and Water Resources, Univ. of California, 1 Shields Ave., Davis, CA 95616-8627 (corresponding author).