1. NASA Goddard Space Flight Center; Greenbelt Maryland USA
2. NASA Langley Research Center; Hampton Virginia USA
3. Department of Atmospheric and Oceanic Science; University of Maryland; College Park Maryland USA
4. Chemical Sciences Division; NOAA Earth System Research Laboratory; Boulder Colorado USA
5. Program in Atmospheric and Oceanic Sciences; Princeton University and NOAA Geophysical Fluid Dynamics Laboratory; Princeton New Jersey USA
6. Earth System Science Interdisciplinary Center; University of Maryland; College Park Maryland USA
7. Science Systems and Applications, Inc; Lanham Maryland USA
8. Department of Environmental Sciences; University of Virginia; Charlottesville Virginia USA
9. National Center for Atmospheric Research; Boulder Colorado USA