1. NorthWest Research Associates Bellevue WA USA
2. Department of Atmospheric and Oceanic Sciences University of Colorado Boulder CO USA
3. Department of Atmospheric Science Colorado State University Fort Collins CO USA
4. Handix Scientific Boulder CO USA
5. Department of Chemistry Colorado State University Fort Collins CO USA
6. Department of Physics North Carolina A &T State University Greensboro NC USA
7. Department of Atmospheric Science University of Wyoming Laramie WY USA
8. National Center for Atmospheric Research Research Aviation Facility Boulder CO USA