1. Department of Atmospheric and Oceanic Sciences University of Colorado Boulder Boulder CO USA
2. Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA
3. National Center for Atmospheric Research Boulder CO USA
4. NASA Ames Research Center Mountain View CA USA
5. Spec Inc. Boulder CO USA
6. NOAA/Earth System Research Laboratory and Cooperative Institute for Research in Environmental Sciences Boulder CO USA
7. NASA Langley Research Center Hampton VA USA