Shift of subtropical transport barriers explains observed hemispheric asymmetry of decadal trends of age of air

Stiller, Gabriele P.; Fierli, Federico; Ploeger, Felix; Cagnazzo, Chiara; Funke, Bernd; Haenel, Florian J.; Reddmann, Thomas; Riese, Martin; von Clarmann, Thomas

doi:https://doi.org/10.5194/acp-17-11177-2017

Articles | Volume 17, issue 18

https://doi.org/10.5194/acp-17-11177-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-11177-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 18

Research article

|

21 Sep 2017

Research article |

| 21 Sep 2017

Shift of subtropical transport barriers explains observed hemispheric asymmetry of decadal trends of age of air

Gabriele P. Stiller, Federico Fierli, Felix Ploeger, Chiara Cagnazzo, Bernd Funke, Florian J. Haenel, Thomas Reddmann, Martin Riese, and Thomas von Clarmann

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Final revised paper (published on 21 Sep 2017)
Preprint (discussion started on 16 Jan 2017)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Stiller et al', Anonymous Referee #1, 12 Feb 2017
- AC1: 'Reply to reviewer # 1', Gabriele Stiller, 28 Apr 2017
RC2: 'Review of Stiller et al', Anonymous Referee #2, 17 Feb 2017
- AC2: 'Reply to Reviewer # 2', Gabriele Stiller, 28 Apr 2017

Peer-review completion

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

AR by Gabriele Stiller on behalf of the Authors (15 Jun 2017) Author's response Manuscript

ED: Referee Nomination & Report Request started (01 Jul 2017) by Peter Haynes

RR by Anonymous Referee #2 (13 Jul 2017)

RR by Anonymous Referee #1 (20 Jul 2017)

ED: Publish as is (04 Aug 2017) by Peter Haynes

AR by Gabriele Stiller on behalf of the Authors (18 Aug 2017) Author's response Manuscript

Short summary

The discrepancy between modelled and observed 25-year trends of the strength of the stratospheric Brewer–Dobson circulation (BDC) is still not resolved. With our paper we trace the observed hemispheric dipole structure of age of air trends back to natural variability in shorter-term (decadal) time frames. Beyond this we demonstrate that after correction for the decadal natural variability the remaining trend for the first decade of the 21st century is consistent with model simulations.