Surface ozone in the Southern Hemisphere: 20 years of data from a site with a unique setting in El Tololo, Chile

Anet, Julien G.; Steinbacher, Martin; Gallardo, Laura; Velásquez Álvarez, Patricio A.; Emmenegger, Lukas; Buchmann, Brigitte

doi:https://doi.org/10.5194/acp-17-6477-2017

Articles | Volume 17, issue 10

https://doi.org/10.5194/acp-17-6477-2017

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

https://doi.org/10.5194/acp-17-6477-2017

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

Articles | Volume 17, issue 10

Research article

|

31 May 2017

Research article |

| 31 May 2017

Surface ozone in the Southern Hemisphere: 20 years of data from a site with a unique setting in El Tololo, Chile

Julien G. Anet, Martin Steinbacher, Laura Gallardo, Patricio A. Velásquez Álvarez, Lukas Emmenegger, and Brigitte Buchmann

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Final revised paper (published on 31 May 2017)
Supplement to the final revised paper
Preprint (discussion started on 07 Oct 2016)
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Interactive discussion

Status: closed

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

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RC1: 'Review of Surface ozone in the southern hemisphere: 20 years of data from a site with a unique setting in El Tololo, Chile', Anonymous Referee #1, 04 Nov 2016
- AC1: 'Reply to "Review of Surface ozone in the southern hemisphere: 20 years of data from a site with a unique setting in El Tololo, Chile', Anonymous Referee #1"', Julien Gérard Anet, 04 Feb 2017
RC2: 'Need additional systematic analyses to identify the causes of seasonal ozone trends at El Tololo', Anonymous Referee #2, 09 Dec 2016
- AC2: 'Reply to "Need additional systematic analyses to identify the causes of seasonal ozone trends at El Tololo', Anonymous Referee #2"', Julien Gérard Anet, 04 Feb 2017

Peer-review completion

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

AR by Julien Gérard Anet on behalf of the Authors (06 Feb 2017) Author's response Manuscript

ED: Referee Nomination & Report Request started (07 Feb 2017) by Jason West

RR by Anonymous Referee #2 (27 Feb 2017)

ED: Reconsider after minor revisions (Editor review) (14 Mar 2017) by Jason West

AR by Julien Gérard Anet on behalf of the Authors (24 Mar 2017) Author's response Manuscript

ED: Publish as is (25 Apr 2017) by Jason West

AR by Julien Gérard Anet on behalf of the Authors (27 Apr 2017) Author's response Manuscript

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Short summary

There are less long-term surface ozone measurements on the Southern than on the Northern Hemisphere, which makes it difficult to thoroughly understand global ozone chemistry. We have analyzed a new, 20-year-long ozone dataset measured at 2200 m asl at El Tololo, Chile, and show that the annual cycle of ozone is mainly driven by ozone transport from the stratosphere to the troposphere. As well, we illustrate that the timing of the annual maximum is regressing to earlier in the year.