1. Atmospheric Chemistry Observations and Modeling Laboratory National Center for Atmospheric Research Boulder Colorado USA
2. Department of Atmospheric Science University of Arizona Tucson Arizona USA
3. Institute for Mathematics Applied to Geoscience National Center for Atmospheric Research Boulder Colorado USA
4. UPMC Université Paris 6, Université Versailles St‐Quentin, LATMOS‐IPSL CNRS/INSU Paris France
5. Spectroscopie de l'Atmosphère, Service de Chimie Quantique et Photophysique Université Libre de Bruxelles Brussels Belgium