[1] Lawrence Livermore Natl Lab, Cloud Proc Res Grp, 7000 East Ave,L-103, Livermore, CA 94551 USA
[2] Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA
[3] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA
[4] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
[5] NOAA, Div Phys Sci, Earth Syst Res Lab, Boulder, CO 80305 USA