Articles | Volume 15, issue 20
Atmos. Chem. Phys., 15, 11461–11476, 2015
https://doi.org/10.5194/acp-15-11461-2015
Atmos. Chem. Phys., 15, 11461–11476, 2015
https://doi.org/10.5194/acp-15-11461-2015

Research article 16 Oct 2015

Research article | 16 Oct 2015

The impacts of volcanic aerosol on stratospheric ozone and the Northern Hemisphere polar vortex: separating radiative-dynamical changes from direct effects due to enhanced aerosol heterogeneous chemistry

S. Muthers et al.

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Cited articles

Al-Saadi, J. A., Pierce, R. B., Fairlie, T. D., Kleb, K. M., Eckman, R. S., Grose, W. L., Natarajan, M., and Olson, J. R.: Response of middle atmosphere chemistry and dynamics to volcanically elevated sulfate aerosol: three-dimensional coupled model simulations, J. Geophys. Res., 106, 27255–27275, https://doi.org/10.1029/2000JD000185, 2001.
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Aquila, V., Oman, L. D., Stolarski, R., Douglass, A. R., and Newman, P. A.: The response of ozone and nitrogen dioxide to the eruption of Mt. Pinatubo at southern and northern midlatitudes, J. Atmos. Sci., 70, 894–900, https://doi.org/10.1175/JAS-D-12-0143.1, 2013.
Arfeuille, F., Luo, B. P., Heckendorn, P., Weisenstein, D., Sheng, J. X., Rozanov, E., Schraner, M., Brönnimann, S., Thomason, L. W., and Peter, T.: Modeling the stratospheric warming following the Mt. Pinatubo eruption: uncertainties in aerosol extinctions, Atmos. Chem. Phys., 13, 11221–11234, https://doi.org/10.5194/acp-13-11221-2013, 2013.
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Short summary
After volcanic eruptions different radiative and chemical processes take place in the stratosphere which perturb the ozone layer and cause pronounced dynamical changes. In idealized chemistry-climate model simulations the importance of these processes and the modulating role of the climate state is analysed. The chemical effect strongly differs between a preindustrial and present-day climate, but the effect on the dynamics is weak. Radiative processes dominate the dynamics in all climate states.
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