Articles | Volume 15, issue 4
https://doi.org/10.5194/acp-15-2019-2015
https://doi.org/10.5194/acp-15-2019-2015
Research article
 | 
24 Feb 2015
Research article |  | 24 Feb 2015

Contribution of liquid, NAT and ice particles to chlorine activation and ozone depletion in Antarctic winter and spring

O. Kirner, R. Müller, R. Ruhnke, and H. Fischer

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Short summary
We use multi-year simulations of the chemistry--climate model EMAC to investigate the impact that the various types of PSCs have on Antarctic chlorine activation and ozone loss. Heterogeneous chemistry on liquid particles is responsible for more than 90% of the ozone depletion in Antarctic spring in the model simulations. In high southern latitudes, heterogeneous chemistry on ice particles causes only up to 5 DU of additional ozone depletion and chemistry on NAT particles less than 0.5 DU.
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