Lower tropospheric ozone over the North China Plain: variability and trends revealed by IASI satellite observations for 2008–2016

Dufour, Gaëlle; Eremenko, Maxim; Beekmann, Matthias; Cuesta, Juan; Foret, Gilles; Fortems-Cheiney, Audrey; Lachâtre, Mathieu; Lin, Weili; Liu, Yi; Xu, Xiaobin; Zhang, Yuli

doi:https://doi.org/10.5194/acp-18-16439-2018

Articles | Volume 18, issue 22

https://doi.org/10.5194/acp-18-16439-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-16439-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 22

Research article

|

20 Nov 2018

Research article |

| 20 Nov 2018

Lower tropospheric ozone over the North China Plain: variability and trends revealed by IASI satellite observations for 2008–2016

Gaëlle Dufour, Maxim Eremenko, Matthias Beekmann, Juan Cuesta, Gilles Foret, Audrey Fortems-Cheiney, Mathieu Lachâtre, Weili Lin, Yi Liu, Xiaobin Xu, and Yuli Zhang

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Final revised paper (published on 20 Nov 2018)
Preprint (discussion started on 07 Jun 2018)

Interactive discussion

Status: closed

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

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RC1: 'REVIEW', Anonymous Referee #1, 02 Jul 2018
RC2: 'Review of acp-2018-413', Anonymous Referee #2, 15 Jul 2018
AC1: 'Response to referees', Gaëlle Dufour, 07 Sep 2018

Peer-review completion

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

AR by Gaëlle Dufour on behalf of the Authors (12 Sep 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (23 Oct 2018) by Michel Van Roozendael

RR by Anonymous Referee #1 (30 Oct 2018)

ED: Publish subject to minor revisions (review by editor) (30 Oct 2018) by Michel Van Roozendael

AR by Gaëlle Dufour on behalf of the Authors (06 Nov 2018) Author's response Manuscript

ED: Publish as is (07 Nov 2018) by Michel Van Roozendael

Short summary

The analysis of IASI lower tropospheric ozone columns over the North China Plain for the 2008–2016 period reveals two distinct periods: one before 2013 without any significant trend, and one after 2013 with a significant negative trend (−1.2 % yr⁻¹). Our results suggest that the negative trend could be attributed to a reduction of the stratosphere-to-troposphere transport combined with the recent reduction of regional NO_x emissions.