The mechanisms and seasonal differences of the impact of aerosols on daytime surface urban heat island effect

Han, Wenchao; Li, Zhanqing; Wu, Fang; Zhang, Yuwei; Guo, Jianping; Su, Tianning; Cribb, Maureen; Fan, Jiwen; Chen, Tianmeng; Wei, Jing; Lee, Seoung-Soo

doi:https://doi.org/10.5194/acp-20-6479-2020

Articles | Volume 20, issue 11

https://doi.org/10.5194/acp-20-6479-2020

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

https://doi.org/10.5194/acp-20-6479-2020

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

Articles | Volume 20, issue 11

Research article

|

05 Jun 2020

Research article |

| 05 Jun 2020

The mechanisms and seasonal differences of the impact of aerosols on daytime surface urban heat island effect

Wenchao Han, Zhanqing Li, Fang Wu, Yuwei Zhang, Jianping Guo, Tianning Su, Maureen Cribb, Jiwen Fan, Tianmeng Chen, Jing Wei, and Seoung-Soo Lee

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Final revised paper (published on 05 Jun 2020)
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Preprint (discussion started on 24 Feb 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: 'Comments on acp-2020-162', Anonymous Referee #1, 28 Feb 2020
- SC2: 'reply to the comments by referee 1', Zhanqing Li, 15 Apr 2020
- AC1: 'Response to reviewer 1', Wenchao Han, 17 Apr 2020
  - AC3: 'Supplement of AC1', Wenchao Han, 18 Apr 2020
RC2: 'Comments on “Opposite Effects of Aerosols on Daytime Urban Heat Island Intensity between Summer and Winter”', Anonymous Referee #2, 04 Mar 2020
- SC1: 'reply to referee 2', Zhanqing Li, 15 Apr 2020
- AC2: 'Response to review 2', Wenchao Han, 17 Apr 2020
- AC4: 'Supplement of AC2', Wenchao Han, 18 Apr 2020
- AC5: 'Response to review 2 - correct version', Wenchao Han, 21 Apr 2020

Peer-review completion

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

AR by Wenchao Han on behalf of the Authors (21 Apr 2020) Author's response Manuscript

ED: Publish as is (29 Apr 2020) by Jianping Huang

AR by Wenchao Han on behalf of the Authors (06 May 2020)

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Short summary

Observational data and model simulation were used to analyze the daytime urban heat island intensity (UHII) under polluted and clean conditions in China. We found that aerosols reduce the UHII in summer but increase the UHII in winter. Two mechanisms, the aerosol radiative effect (ARE) and the aerosol dynamic effect (ADE), behave differently in summer and winter. In summer, the UHII is mainly affected by the ARE, and the ADE is weak, and the opposite is the case in winter.