Articles | Volume 19, issue 16
Atmos. Chem. Phys., 19, 10757–10772, 2019
https://doi.org/10.5194/acp-19-10757-2019

Special issue: The Polar Stratosphere in a Changing Climate (POLSTRACC) (ACP/AMT...

Atmos. Chem. Phys., 19, 10757–10772, 2019
https://doi.org/10.5194/acp-19-10757-2019

Research article 26 Aug 2019

Research article | 26 Aug 2019

Chlorine partitioning in the lowermost Arctic vortex during the cold winter 2015/2016

Andreas Marsing et al.

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Latest update: 18 Jun 2021
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Short summary
We study the partitioning of inorganic chlorine into active (ozone-depleting) and reservoir species in the lowermost stratosphere of the Arctic polar vortex, using novel in situ aircraft measurements in winter 2015/2016. We observe a change in recovery pathways of the reservoirs HCl and ClONO2 with increasing potential temperature. A comparison with the CLaMS model relates the observations to the vortex-wide evolution and confirms unresolved discrepancies in the mid-winter HCl distribution.
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