Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Atmos. Chem. Phys. Discuss., 12, 21065–21104, 2012 Atmospheric www.atmos-chem-phys-discuss.net/12/21065/2012/ Chemistry doi:10.5194/acpd-12-21065-2012 and Physics © Author(s) 2012. CC Attribution 3.0 License. Discussions This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Diurnal variation of stratospheric HOCl, ClO and HO2 at the equator: comparison of 1-D model calculations with measurements of satellite instruments M. Khosravi1, P. Baron2, J. Urban1, L. Froidevaux3, A. I. Jonsson4, Y. Kasai2,5, K. Kuribayashi2,5, C. Mitsuda6, D. P. Murtagh1, H. Sagawa2, M. L. Santee3, T. O. Sato2,5, M. Shiotani7, M. Suzuki8, T. von Clarmann9, K. A. Walker4, and S. Wang3 1Department of Earth and Space Sciences, Chalmers University of Technology, Gothenburg, Sweden 2National Institute of Information and Communications Technology, Tokyo, Japan 3Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA 4Tokyo Institute of Technology, Kanagawa, Japan 5Tokyo Institute of Technology, Yokohama, Japan 6Fujitsu FIP Corporation, Tokyo, Japan 7Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan 8Japan Aerospace Exploration Agency, Ibaraki, Japan 21065 Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | 9Karlsruhe Institute of Technology, Institute for Meteorology and Climate Research, Karlsruhe, Germany Received: 10 May 2012 – Accepted: 20 July 2012 – Published: 20 August 2012 Correspondence to: M. Khosravi (
[email protected]) Published by Copernicus Publications on behalf of the European Geosciences Union. 21066 Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Abstract The diurnal variation of HOCl and the related species ClO, HO2 and HCl mea- sured by satellites has been compared with the results of a one-dimensional pho- tochemical model.