1. Laboratory for Atmospheres, NASA Goddard Space Flight Center, Greenbelt, Maryland
2. GEST, University of Maryland, Baltimore County, Baltimore, and NASA Goddard Space Flight Center, Greenbelt, Maryland
3. Bay Area Environmental Research Institute, Sonoma, and NASA Ames Research Center, Moffett Field, California
4. SAIC, and NASA Langley Research Center, Hampton, Virginia