New strategies for vertical transport in chemistry transport models: application to the case of the Mount Etna eruption on 18 March 2012 with CHIMERE v2017r4

Lachatre, Mathieu; Mailler, Sylvain; Menut, Laurent; Turquety, Solène; Sellitto, Pasquale; Guermazi, Henda; Salerno, Giuseppe; Caltabiano, Tommaso; Carboni, Elisa

doi:https://doi.org/10.5194/gmd-13-5707-2020

Articles | Volume 13, issue 11

https://doi.org/10.5194/gmd-13-5707-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-13-5707-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 11

Model description paper

|

20 Nov 2020

Model description paper |

| 20 Nov 2020

New strategies for vertical transport in chemistry transport models: application to the case of the Mount Etna eruption on 18 March 2012 with CHIMERE v2017r4

Mathieu Lachatre, Sylvain Mailler, Laurent Menut, Solène Turquety, Pasquale Sellitto, Henda Guermazi, Giuseppe Salerno, Tommaso Caltabiano, and Elisa Carboni

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Final revised paper (published on 20 Nov 2020)
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Preprint (discussion started on 17 Apr 2020)
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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 "New strategies for vertical transport in chemistry-transport models: application to the case of the Mount Etna eruption on March 18, 2012 with CHIMERE v2017r4"', Anonymous Referee #1, 16 May 2020
- AC1: 'Answer to Anonymous referee #1, received 16 may 2020', Mathieu Lachatre, 11 Jul 2020
RC2: 'Review of "New strategies for vertical transport in chemistry-transport models: application to the case of the Mount Etna eruption on March 18, 2012 with CHIMERE v2017r4"', Anonymous Referee #2, 20 May 2020
- AC2: 'Answer to Anonymous referee #2', Mathieu Lachatre, 11 Jul 2020

Peer-review completion

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

AR by Anna Wenzel on behalf of the Authors (22 Jul 2020) Author's response

ED: Referee Nomination & Report Request started (03 Aug 2020) by Jason Williams

RR by Anonymous Referee #1 (18 Aug 2020)

RR by Anonymous Referee #2 (30 Aug 2020)

ED: Publish subject to technical corrections (03 Sep 2020) by Jason Williams

Short summary

Excessive numerical diffusion is a major limitation in the representation of long-range transport in atmospheric models. In the present study, we focus on excessive diffusion in the vertical direction. We explore three possible ways of addressing this problem: increased vertical resolution, an advection scheme with anti-diffusive properties and more accurate representation of vertical wind. This study focused on a particular volcanic eruption event to improve atmospheric transport modeling.