A revised mineral dust emission scheme in GEOS-Chem: improvements in dust simulations over China

Tian, Rong; Ma, Xiaoyan; Zhao, Jianqi

doi:https://doi.org/10.5194/acp-21-4319-2021

Articles | Volume 21, issue 6

https://doi.org/10.5194/acp-21-4319-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-4319-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 6

Research article

|

22 Mar 2021

Research article |

| 22 Mar 2021

A revised mineral dust emission scheme in GEOS-Chem: improvements in dust simulations over China

Rong Tian, Xiaoyan Ma, and Jianqi Zhao

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Final revised paper (published on 22 Mar 2021)
Supplement to the final revised paper
Preprint (discussion started on 29 Oct 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'commenting dust emission scheme paper', Anonymous Referee #1, 30 Nov 2020
- AC1: 'Reply on RC1', Rong Tian, 26 Jan 2021
RC2: 'Comments to “A revised mineral dust emission scheme in GEOS-Chem: improvements in dust simulations over China”', Anonymous Referee #2, 07 Jan 2021
- AC2: 'Reply on RC2', Rong Tian, 26 Jan 2021

Peer-review completion

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

AR by Rong Tian on behalf of the Authors (26 Jan 2021) Author's response Author's tracked changes Manuscript

ED: Publish as is (09 Feb 2021) by Sachin S. Gunthe

AR by Rong Tian on behalf of the Authors (14 Feb 2021) Manuscript

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Short summary

We improve the treatment of the dust emission process in GEOS-Chem by considering the effect of geographical variation of aerodynamic roughness length, smooth roughness length and soil texture, as well as the Owen effect and a more physically based formulation of sandblasting efficiency, which improve estimated threshold friction velocity and dust concentrations over China. Our study highlights the importance of incorporation of realistic land-surface properties into the dust emission scheme.