Mechanism of ozone loss under enhanced water vapour conditions in the mid-latitude lower stratosphere in summer

Robrecht, Sabine; Vogel, Bärbel; Grooß, Jens-Uwe; Rosenlof, Karen; Thornberry, Troy; Rollins, Andrew; Krämer, Martina; Christensen, Lance; Müller, Rolf

doi:https://doi.org/10.5194/acp-19-5805-2019

Articles | Volume 19, issue 9

https://doi.org/10.5194/acp-19-5805-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-5805-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 9

Research article

|

03 May 2019

Research article |

| 03 May 2019

Mechanism of ozone loss under enhanced water vapour conditions in the mid-latitude lower stratosphere in summer

Sabine Robrecht, Bärbel Vogel, Jens-Uwe Grooß, Karen Rosenlof, Troy Thornberry, Andrew Rollins, Martina Krämer, Lance Christensen, and Rolf Müller

Supplement

https://doi.org/10.5194/acp-19-5805-2019-supplement

Data sets

SEAC4RS data NASA https://www-air.larc.nasa.gov/cgi-bin/ArcView/seac4rs

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Short summary

The potential destruction of stratospheric ozone in the mid-latitudes has been discussed recently. We analysed this ozone loss mechanism and its sensitivities. In a certain temperature range, we found a threshold in water vapour, which has to be exceeded for ozone loss to occur. We show the dependence of this water vapour threshold on temperature, sulfate content and air composition. This study provides a basis to estimate the impact of potential sulphate geoengineering on stratospheric ozone.