Articles | Volume 22, issue 2
Atmos. Chem. Phys., 22, 1175–1193, 2022
https://doi.org/10.5194/acp-22-1175-2022

Special issue: The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

Atmos. Chem. Phys., 22, 1175–1193, 2022
https://doi.org/10.5194/acp-22-1175-2022

Research article 24 Jan 2022

Research article | 24 Jan 2022

The impact of sulfur hexafluoride (SF6) sinks on age of air climatologies and trends

Sheena Loeffel et al.

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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-2021-232', Eric Ray, 24 May 2021
  • RC2: 'Comment on acp-2021-232', Rostislav Kouznetsov, 28 May 2021
  • AC1: 'Comment on acp-2021-232', Sheena Loeffel, 13 Aug 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Sheena Loeffel on behalf of the Authors (13 Aug 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (23 Aug 2021) by Jerome Brioude
RR by Rostislav Kouznetsov (17 Sep 2021)
RR by Eric Ray (23 Sep 2021)
ED: Reconsider after major revisions (03 Oct 2021) by Jerome Brioude
AR by Sheena Loeffel on behalf of the Authors (19 Nov 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (22 Nov 2021) by Jerome Brioude
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Short summary
SF6-derived trends of stratospheric AoA from observations and model simulations disagree in sign. SF6 experiences chemical degradation, which we explicitly integrate in a global climate model. In our simulations, the AoA trend changes sign when SF6 sinks are considered; thus, the process has the potential to reconcile simulated with observed AoA trends. We show that the positive AoA trend is due to the SF6 sinks themselves and provide a first approach for a correction to account for SF6 loss.
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