Seasonal and inter-annual variability of lower stratospheric age of air spectra

Ploeger, Felix; Birner, Thomas

doi:https://doi.org/10.5194/acp-16-10195-2016

Articles | Volume 16, issue 15

https://doi.org/10.5194/acp-16-10195-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-10195-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 15

Research article

|

11 Aug 2016

Research article |

| 11 Aug 2016

Seasonal and inter-annual variability of lower stratospheric age of air spectra

Felix Ploeger and Thomas Birner

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Final revised paper (published on 11 Aug 2016)
Preprint (discussion started on 23 Feb 2016)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of acp-2016-135', Anonymous Referee #1, 16 Mar 2016
- RC2: 'Review of Ploeger and Birner', Eric Ray, 17 Mar 2016
  - AC2: 'Reply to Reviewer 2 (E. Ray)', Felix Ploeger, 31 May 2016
- AC1: 'Reply to Reviewer 1', Felix Ploeger, 31 May 2016
RC3: 'Referee Review', Anonymous Referee #3, 19 Mar 2016
- AC3: 'Reply to Reviewer 3', Felix Ploeger, 31 May 2016

Peer-review completion

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

AR by Felix Ploeger on behalf of the Authors (03 Jun 2016) Author's response Manuscript

ED: Referee Nomination & Report Request started (18 Jun 2016) by Peter Haynes

RR by Eric Ray (23 Jun 2016)

RR by Anonymous Referee #1 (30 Jun 2016)

RR by Anonymous Referee #3 (30 Jun 2016)

ED: Publish as is (06 Jul 2016) by Peter Haynes

AR by Felix Ploeger on behalf of the Authors (13 Jul 2016)

Short summary

We investigate the aging of air in the stratosphere caused by transport due to Brewer's circulation, using the Boundary Impulse Evolving Response (BIER) method. The age spectra show multiple peaks caused by the seasonal and inter-annual variations of transport. The modal age is controlled by the residual circulation in the tropics and winter hemisphere extratropics and by mixing in the summer hemisphere. Analysis of the full age spectrum is strongly recommended for model inter-comparisons.