Articles | Volume 17, issue 3
Research article
14 Feb 2017
Research article |  | 14 Feb 2017

Impact of a moderate volcanic eruption on chemistry in the lower stratosphere: balloon-borne observations and model calculations

Gwenaël Berthet, Fabrice Jégou, Valéry Catoire, Gisèle Krysztofiak, Jean-Baptiste Renard, Adam E. Bourassa, Doug A. Degenstein, Colette Brogniez, Marcel Dorf, Sebastian Kreycy, Klaus Pfeilsticker, Bodo Werner, Franck Lefèvre, Tjarda J. Roberts, Thibaut Lurton, Damien Vignelles, Nelson Bègue, Quentin Bourgeois, Daniel Daugeron, Michel Chartier, Claude Robert, Bertrand Gaubicher, and Christophe Guimbaud

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Cited articles

Aliwell, S., Van Roozendael, M., Johnston, P., Richter, A., Wagner, T., Arlander, D., Burrows, J., Fish, D., Jones, R., Tornkvist, K., Lambert, J.-C., Pfeilsticker, K., and Pundt, I.: Analysis for BrO in zenith-sky spectra: An intercomparison exercise for analysis improvement, J. Geophys. Res., 107, 4199,, 2002.
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Berthet, G., Renard, J.-B., Brogniez, C., Robert, C., Chartier, M., and Pirre, M.: Optical and physical properties of stratospheric aerosols from balloon measurements in the visible and near-infrared domain: 1. Analysis of aerosol extinction spectra from the AMON and SALOMON instruments, Appl. Optics, 41, 7522–7539, 2002.
Short summary
Since the last major volcanic event, i.e. the Pinatubo eruption in 1991, only moderate eruptions have regularly injected sulfur into the stratosphere, typically enhancing the aerosol loading for several months. We investigate here for the first time the chemical perturbation associated with the Sarychev eruption in June 2009, using balloon-borne instruments and model calculations. Some chemical compounds are significantly affected by the aerosols, but the impact on stratospheric ozone is weak.
Final-revised paper