[1] Univ Space Res Assoc, Columbia, MD 21046 USA
[2] NASA, Global Modeling & Assimilat Off, Greenbelt, MD 20771 USA
[3] CALTECH, Jet Prop Lab, Pasadena, CA USA
[4] NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA
[5] Univ Washington, Joint Inst Study Atmosphere & Ocean, Seattle, WA 98195 USA
[6] Colorado State Univ, Ft Collins, CO 80523 USA
[7] Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA