Optimization of the sulfate aerosol hygroscopicity parameter in WRF-Chem

Kim, Ah-Hyun; Yum, Seong Soo; Chang, Dong Yeong; Park, Minsu

doi:https://doi.org/10.5194/gmd-14-259-2021

Articles | Volume 14, issue 1

https://doi.org/10.5194/gmd-14-259-2021

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

https://doi.org/10.5194/gmd-14-259-2021

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

Articles | Volume 14, issue 1

Development and technical paper

|

15 Jan 2021

Development and technical paper |

| 15 Jan 2021

Optimization of the sulfate aerosol hygroscopicity parameter in WRF-Chem

Ah-Hyun Kim, Seong Soo Yum, Dong Yeong Chang, and Minsu Park

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Final revised paper (published on 15 Jan 2021)
Preprint (discussion started on 22 Jun 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Optimization of Sulfate Aerosol Hygroscopicity Parameter in WRFChem version (3.8.1)', Anonymous Referee #1, 26 Aug 2020
- AC1: 'response to referee #1', Seong Soo Yum, 07 Oct 2020
RC2: 'Review of "Optimization of Sulfate Aerosol Hygroscopicity Parameter in WRF-Chem version (3.8.1)" by Kim et al.', Richard Moore, 08 Sep 2020
- AC2: 'response to referee #2', Seong Soo Yum, 07 Oct 2020

Peer-review completion

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

AR by Seong Soo Yum on behalf of the Authors (07 Oct 2020) Author's response Manuscript

ED: Reconsider after major revisions (21 Oct 2020) by Samuel Remy

ED: Referee Nomination & Report Request started (22 Oct 2020) by Samuel Remy

RR by Richard Moore (11 Nov 2020)

ED: Publish subject to technical corrections (01 Dec 2020) by Samuel Remy

Short summary

A new method to estimate the sulfate aerosol hygroscopicity parameter (κSO₄) is suggested that can consider κSO₄ for two different sulfate species instead of prescribing a single κSO₄ value, as in most previous studies. The new method simulates more realistic cloud droplet concentrations and, thus, a more realistic cloud albedo effect than the original method. The new method is simple and readily applicable to modeling studies investigating sulfate aerosols’ effect in aerosol–cloud interactions.