Articles | Volume 18, issue 2
Atmos. Chem. Phys., 18, 1379–1394, 2018
https://doi.org/10.5194/acp-18-1379-2018
Atmos. Chem. Phys., 18, 1379–1394, 2018
https://doi.org/10.5194/acp-18-1379-2018

Research article 06 Feb 2018

Research article | 06 Feb 2018

Evidence for a continuous decline in lower stratospheric ozone offsetting ozone layer recovery

William T. Ball et al.

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by William Ball on behalf of the Authors (11 Dec 2017)  Author's response    Manuscript
ED: Publish subject to technical corrections (18 Dec 2017) by Marc von Hobe
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Short summary
Using a robust analysis, with artefact-corrected ozone data, we confirm upper stratospheric ozone is recovering following the Montreal Protocol, but that lower stratospheric ozone (50° S–50° N) has continued to decrease since 1998, and the ozone layer as a whole (60° S–60° N) may be lower today than in 1998. No change in total column ozone may be due to increasing tropospheric ozone. State-of-the-art models do not reproduce lower stratospheric ozone decreases.
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