Sources of nitrous acid (HONO) in the upper boundary layer and lower free troposphere of the North China Plain: insights from the Mount Tai Observatory

Jiang, Ying; Xue, Likun; Gu, Rongrong; Jia, Mengwei; Zhang, Yingnan; Wen, Liang; Zheng, Penggang; Chen, Tianshu; Li, Hongyong; Shan, Ye; Zhao, Yong; Guo, Zhaoxin; Bi, Yujian; Liu, Hengde; Ding, Aijun; Zhang, Qingzhu; Wang, Wenxing

doi:https://doi.org/10.5194/acp-20-12115-2020

Articles | Volume 20, issue 20

https://doi.org/10.5194/acp-20-12115-2020

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

https://doi.org/10.5194/acp-20-12115-2020

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

Articles | Volume 20, issue 20

Research article

|

26 Oct 2020

Research article |

| 26 Oct 2020

Sources of nitrous acid (HONO) in the upper boundary layer and lower free troposphere of the North China Plain: insights from the Mount Tai Observatory

Ying Jiang, Likun Xue, Rongrong Gu, Mengwei Jia, Yingnan Zhang, Liang Wen, Penggang Zheng, Tianshu Chen, Hongyong Li, Ye Shan, Yong Zhao, Zhaoxin Guo, Yujian Bi, Hengde Liu, Aijun Ding, Qingzhu Zhang, and Wenxing Wang

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Final revised paper (published on 26 Oct 2020)
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Preprint (discussion started on 25 May 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: 'Review of ACP-2020-377', Anonymous Referee #1, 16 Jun 2020
- AC1: 'Response to Referee 1', L.K. Xue, 18 Aug 2020
RC2: 'Review of “Sources of nitrous acid (HONO) in the upper boundary layer and lower free troposphere of North China Plain: insights from the Mount Tai Observatory” by Ying Jiang et al.', Anonymous Referee #2, 10 Jul 2020
- AC2: 'Response to Referee 2', L.K. Xue, 18 Aug 2020
RC3: 'Review of ‘of nitrous acid (HONO) in the upper boundary layer and lower free troposphere of North China Plain: insights from the Mount Tai Observatory', Anonymous Referee #3, 10 Jul 2020
- AC3: 'Response to Referee 3', L.K. Xue, 18 Aug 2020

Peer-review completion

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

AR by L.K. Xue on behalf of the Authors (19 Aug 2020) Author's response Manuscript

ED: Publish subject to technical corrections (31 Aug 2020) by James Roberts

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Short summary

We analyzed the characteristics and sources of HONO in the upper boundary layer and lower free troposphere in the North China Plain, based on the field measurements at Mount Tai. Higher-than-expected levels and broad daytime peaks of HONO were observed. Without presence of ground surfaces, aerosol surface plays a key role in the heterogeneous HONO formation at high altitudes. Models without additional HONO sources largely underestimated the oxidation processes in the elevation atmospheres.