Distinct diurnal variation in organic aerosol hygroscopicity and its relationship with oxygenated organic aerosol

Kuang, Ye; He, Yao; Xu, Wanyun; Zhao, Pusheng; Cheng, Yafang; Zhao, Gang; Tao, Jiangchuan; Ma, Nan; Su, Hang; Zhang, Yanyan; Sun, Jiayin; Cheng, Peng; Yang, Wenda; Zhang, Shaobin; Wu, Cheng; Sun, Yele; Zhao, Chunsheng

doi:https://doi.org/10.5194/acp-20-865-2020

Articles | Volume 20, issue 2

https://doi.org/10.5194/acp-20-865-2020

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

https://doi.org/10.5194/acp-20-865-2020

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

Articles | Volume 20, issue 2

Research article

|

23 Jan 2020

Research article |

| 23 Jan 2020

Distinct diurnal variation in organic aerosol hygroscopicity and its relationship with oxygenated organic aerosol

Ye Kuang, Yao He, Wanyun Xu, Pusheng Zhao, Yafang Cheng, Gang Zhao, Jiangchuan Tao, Nan Ma, Hang Su, Yanyan Zhang, Jiayin Sun, Peng Cheng, Wenda Yang, Shaobin Zhang, Cheng Wu, Yele Sun, and Chunsheng Zhao

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Final revised paper (published on 23 Jan 2020)
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Preprint (discussion started on 30 Sep 2019)
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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: 'Scientific comments', Anonymous Referee #1, 13 Nov 2019
- AC1: 'Response to reviewe#1', Ye Kuang, 06 Dec 2019
RC2: 'Referee comment', Anonymous Referee #2, 15 Nov 2019
- AC2: 'Response to reviewe#2', Ye Kuang, 06 Dec 2019

Peer-review completion

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

AR by Ye Kuang on behalf of the Authors (06 Dec 2019) Manuscript

ED: Publish subject to technical corrections (19 Dec 2019) by James Allan

AR by Ye Kuang on behalf of the Authors (20 Dec 2019) Author's response Manuscript

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Short summary

A new method was developed to calculate hygroscopicity parameter κ of organic aerosols (κ_OA) based on aerosol light-scattering measurements and bulk aerosol chemical-composition measurements. Derived high-time-resolution κ_OA varied in a wide range (near 0 to 0.25), and the organic aerosol oxidation degree significantly impacts variations in κ_OA. Distinct diurnal variation in κ_OA is found, and its relationship with oxygenated organic aerosol is discussed.