1. Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder , Boulder, CO 80309 , USA
2. NOAA Chemical Sciences Laboratory , Boulder, CO 80305 , USA
3. Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University , Washington, DC 20052 , USA
4. Department of Mechanical Engineering, University of Colorado Boulder , Boulder, CO 80309 , USA
5. NOAA Air Resources Laboratory , College Park, MD 20740 , USA
6. NOAA National Environmental Satellite, Data, and Information Service, Center for Satellite Applications and Research , College Park, MD 20740 , USA
7. Earth Resources Technology (ERT) Inc. , Laurel, MD 20707 , USA
8. Space Science and Engineering Center, University of Wisconsin-Madison , Madison, WI 53706 , USA
9. Department of Atmospheric and Oceanic Science, University of Maryland , College Park, MD 20742 , USA
10. Center for Astrophysics, Harvard and Smithsonian , Cambridge, MA 02138 , USA