Enhancement of N2O during the October–November 2003 solar proton events B. Funke1, M. García-Comas1, M. López-Puertas1, N. Glatthor2, G. P. Stiller2, T. von Clarmann2, K. Semeniuk3, and J. C. McConnell3 1Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain 2Forschungszentrum Karlsruhe und Universität Karlsruhe, Institut für Meteorologie und Klimaforschung, Karlsruhe, Germany 3Department of Earth and Space Science and Engineering, York University, Toronto, Ontario, Canada
Abstract. In this paper we present evidence of enhanced N2O concentrations in the
upper stratosphere/lower mesosphere polar regions after the solar
proton events that occurred during October–November 2003. The
observations were performed by the MIPAS instrument on the Envisat
satellite. Simulations performed using the Canadian Middle Atmospheric
Model (CMAM) show that such enhancements are most likely produced by the
reaction of N(4S) with NO2, both of which species are largely
enhanced just after the solar proton events in the winter polar night.
Citation: Funke, B., García-Comas, M., López-Puertas, M., Glatthor, N., Stiller, G. P., von Clarmann, T., Semeniuk, K., and McConnell, J. C.: Enhancement of N2O during the October–November 2003 solar proton events, Atmos. Chem. Phys., 8, 3805-3815, doi:10.5194/acp-8-3805-2008, 2008.