1. Jet Propulsion Laboratory, California Institute of Technology, MS 183-401, 4800 Oak Grove Drive, Pasadena, California 91109
2. Department of Geosciences, 216 Physical Science Research Facility, University of California, Irvine, CA 92717
3. Harvard University, Atmospheric Research Project, 40 Oxford Street, Cambridge, MA 02138
4. National Aeronautics and Space Administration (NASA), Goddard Space Flight Center, Code 916, Greenbelt, MD 20771
5. National Oceanographic and Atmospheric Agency, Climate Monitoring and Diagnostics Laboratory, 325 Broadway, Boulder, CO 80303-3328
6. NASA Ames Research Center, SGG/245-5, Moffett Field, CA 94035-1000