Extratropical age of air trends and causative factors in climate projection simulations

Šácha, Petr; Eichinger, Roland; Garny, Hella; Pišoft, Petr; Dietmüller, Simone; de la Torre, Laura; Plummer, David A.; Jöckel, Patrick; Morgenstern, Olaf; Zeng, Guang; Butchart, Neal; Añel, Juan A.

doi:https://doi.org/10.5194/acp-19-7627-2019

Articles | Volume 19, issue 11

https://doi.org/10.5194/acp-19-7627-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Chemistry–Climate Modelling Initiative (CCMI) (ACP/AMT/ESSD/GMD...

https://doi.org/10.5194/acp-19-7627-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 11

Research article

|

07 Jun 2019

Research article |

| 07 Jun 2019

Extratropical age of air trends and causative factors in climate projection simulations

Petr Šácha, Roland Eichinger, Hella Garny, Petr Pišoft, Simone Dietmüller, Laura de la Torre, David A. Plummer, Patrick Jöckel, Olaf Morgenstern, Guang Zeng, Neal Butchart, and Juan A. Añel

Download

Final revised paper (published on 07 Jun 2019)
Supplement to the final revised paper
Preprint (discussion started on 11 Jan 2019)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

RC1: 'Review of Sacha et al.', Anonymous Referee #2, 09 Feb 2019
- AC1: 'Response to Ref#2', Petr Šácha, 27 Apr 2019
RC2: 'Review on: "Extratropical age of air trends and causative factors in climate projection simulations" by Sacha et al.', Anonymous Referee #1, 04 Mar 2019
- AC2: 'Response to Ref#1', Petr Šácha, 27 Apr 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Petr Šácha on behalf of the Authors (27 Apr 2019) Author's response Manuscript

ED: Publish as is (13 May 2019) by Gabriele Stiller

AR by Petr Šácha on behalf of the Authors (14 May 2019) Manuscript

Download

The requested paper has a corresponding corrigendum published. Please read the corrigendum first before downloading the article.

Article (6023 KB)
Full-text XML

Short summary

Climate models robustly project a Brewer–Dobson circulation (BDC) acceleration in the course of climate change. Analyzing mean age of stratospheric air (AoA) from a subset of climate projection simulations, we find a remarkable agreement in simulating the largest AoA trends in the extratropical stratosphere. This is shown to be related with the upward shift of the circulation, resulting in a so-called stratospheric shrinkage, which could be one of the so-far-omitted BDC acceleration drivers.