Articles | Volume 25, issue 23
https://doi.org/10.5194/acp-25-17527-2025
https://doi.org/10.5194/acp-25-17527-2025
Research article
 | 
03 Dec 2025
Research article |  | 03 Dec 2025

Quantifying the contribution of transport to Antarctic springtime ozone column variability

Hannah E. Kessenich, Annika Seppälä, Dan Smale, Craig J. Rodger, and Mark Weber

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Great paper. Congratulations!', Anonymous Referee #1, 03 Jun 2025
  • RC2: 'Comment on egusphere-2025-873', Kris Wargan, 21 Sep 2025
  • AC1: 'Final author response to the reviewer comments', Hannah Kessenich, 29 Oct 2025

Peer review completion

AR – Author's response | RR – Referee report | ED – Editor decision | EF – Editorial file upload
AR by Hannah Kessenich on behalf of the Authors (29 Oct 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to technical corrections (17 Nov 2025) by Rolf Müller
AR by Hannah Kessenich on behalf of the Authors (18 Nov 2025)  Manuscript 
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Short summary
We use observational data to track a mass of mesospheric air which descends into the Antarctic polar vortex each spring. The altitude of the air mass at the end of October is used to create a new diagnostic metric. The metric captures the dynamical conditions of the vortex and can be used to estimate the amount of poleward ozone transport in October. When used as a proxy for October polar total column ozone, the metric explains the majority (63%) of the observed variance from 2004–2024.
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