Revised treatment of wet scavenging processes dramatically improves GEOS-Chem 12.0.0 simulations of surface nitric acid, nitrate, and ammonium over the United States

Luo, Gan; Yu, Fangqun; Schwab, James

doi:https://doi.org/10.5194/gmd-12-3439-2019

Articles | Volume 12, issue 8

https://doi.org/10.5194/gmd-12-3439-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-12-3439-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 8

Model evaluation paper

|

06 Aug 2019

Model evaluation paper |

| 06 Aug 2019

Revised treatment of wet scavenging processes dramatically improves GEOS-Chem 12.0.0 simulations of surface nitric acid, nitrate, and ammonium over the United States

Gan Luo, Fangqun Yu, and James Schwab

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Final revised paper (published on 06 Aug 2019)
Supplement to the final revised paper
Preprint (discussion started on 07 Mar 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Revised treatment of wet scavenging processes dramatically improves model simulations of nitric acid, nitrate, and ammonium over the United States', Anonymous Referee #1, 08 May 2019
- AC1: 'Reply for referee1's comments on gmd-2019-58', Gan Luo, 17 Jun 2019
RC2: 'Review', Anonymous Referee #2, 19 May 2019
- AC2: 'Reply for referee2's comments on gmd-2019-58', Gan Luo, 17 Jun 2019

Peer-review completion

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

AR by Gan Luo on behalf of the Authors (17 Jun 2019) Author's response Manuscript

ED: Publish subject to minor revisions (review by editor) (27 Jun 2019) by Samuel Remy

AR by Gan Luo on behalf of the Authors (28 Jun 2019) Author's response Manuscript

ED: Publish as is (17 Jul 2019) by Samuel Remy

AR by Gan Luo on behalf of the Authors (17 Jul 2019) Manuscript

Short summary

GEOS-Chem 12.0.0 has been recognized to significantly overestimate the concentrations of gaseous nitric acid, aerosol nitrate, and aerosol ammonium over the United States. In this study, we show that most or all of the overestimation issue appears to be associated with wet scavenging processes. With the updated wet scavenging scheme in this work, we successfully improve the skill of the model in predicting the three species concentrations, which are important for air quality and climate studies.