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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 8, issue 14
Atmos. Chem. Phys., 8, 3805-3815, 2008
https://doi.org/10.5194/acp-8-3805-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 8, 3805-3815, 2008
https://doi.org/10.5194/acp-8-3805-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.

  17 Jul 2008

17 Jul 2008

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 B. Funke et al.
  • 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.

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