Articles | Volume 21, issue 17
Atmos. Chem. Phys., 21, 12835–12853, 2021
https://doi.org/10.5194/acp-21-12835-2021
Atmos. Chem. Phys., 21, 12835–12853, 2021
https://doi.org/10.5194/acp-21-12835-2021

Research article 31 Aug 2021

Research article | 31 Aug 2021

Does the coupling of the semiannual oscillation with the quasi-biennial oscillation provide predictability of Antarctic sudden stratospheric warmings?

Viktoria J. Nordström and Annika Seppälä

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2020-1237', Anonymous Referee #4, 23 Jan 2021
    • AC1: 'Comment on acp-2020-1237', Annika Seppälä, 30 Jun 2021
  • RC2: 'Comment on acp-2020-1237', Anonymous Referee #3, 01 Feb 2021
    • AC1: 'Comment on acp-2020-1237', Annika Seppälä, 30 Jun 2021
  • RC3: 'Comment on acp-2020-1237', Anonymous Referee #1, 05 Feb 2021
    • AC1: 'Comment on acp-2020-1237', Annika Seppälä, 30 Jun 2021
  • RC4: 'Comment on acp-2020-1237', Anonymous Referee #2, 08 Feb 2021
    • AC1: 'Comment on acp-2020-1237', Annika Seppälä, 30 Jun 2021
  • AC1: 'Comment on acp-2020-1237', Annika Seppälä, 30 Jun 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Annika Seppälä on behalf of the Authors (09 Jul 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (12 Jul 2021) by Martin Dameris
RR by Anonymous Referee #2 (21 Jul 2021)
RR by Anonymous Referee #3 (26 Jul 2021)
ED: Publish subject to technical corrections (26 Jul 2021) by Martin Dameris
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Short summary
The winter winds over Antarctica form a stable vortex. However, in 2019 the vortex was disrupted and the temperature in the polar stratosphere rose by 50°C. This event, called a sudden stratospheric warming, is a rare event in the Southern Hemisphere, with the only known major event having taken place in 2002. The 2019 event helps us unravel its causes, which are largely unknown. We have discovered a unique behaviour of the equatorial winds in 2002 and 2019 that may signal an impending SH SSW.
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