Articles | Volume 21, issue 2
Atmos. Chem. Phys., 21, 617–633, 2021
https://doi.org/10.5194/acp-21-617-2021
Atmos. Chem. Phys., 21, 617–633, 2021
https://doi.org/10.5194/acp-21-617-2021

Research article 18 Jan 2021

Research article | 18 Jan 2021

Record low ozone values over the Arctic in boreal spring 2020

Martin Dameris et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Martin Dameris on behalf of the Authors (19 Oct 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (21 Oct 2020) by Farahnaz Khosrawi
RR by Ingo Wohltmann (01 Nov 2020)
RR by Gloria Manney (04 Nov 2020)
ED: Publish subject to minor revisions (review by editor) (04 Nov 2020) by Farahnaz Khosrawi
AR by Martin Dameris on behalf of the Authors (13 Nov 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (16 Nov 2020) by Farahnaz Khosrawi
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Short summary
Record low ozone values were observed in March 2020. Dynamical and chemical circumstances leading to low ozone values in spring 2020 are discussed and are compared to similar dynamical conditions in the Northern Hemisphere in 1996/1997 and 2010/2011. 2019/2020 showed an unusual persistent polar vortex with low stratospheric temperatures, which were permanently below 195 K at 50 hPa. This enabled enhanced formation of polar stratospheric clouds and a subsequent clear reduction of total ozone.
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