The impact of multi-species surface chemical observation assimilation on air quality forecasts in China

Peng, Zhen; Lei, Lili; Liu, Zhiquan; Sun, Jianning; Ding, Aijun; Ban, Junmei; Chen, Dan; Kou, Xingxia; Chu, Kekuan

doi:https://doi.org/10.5194/acp-18-17387-2018

Articles | Volume 18, issue 23

https://doi.org/10.5194/acp-18-17387-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Regional transport and transformation of air pollution in...

https://doi.org/10.5194/acp-18-17387-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 23

Research article

|

07 Dec 2018

Research article |

| 07 Dec 2018

The impact of multi-species surface chemical observation assimilation on air quality forecasts in China

Zhen Peng, Lili Lei, Zhiquan Liu, Jianning Sun, Aijun Ding, Junmei Ban, Dan Chen, Xingxia Kou, and Kekuan Chu

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Final revised paper (published on 07 Dec 2018)
Preprint (discussion started on 30 Jul 2018)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review on “The impact of multi-species surface chemical observations assimilation on the air quality forecasts in China”', Anonymous Referee #1, 04 Sep 2018
- AC1: 'Response to Reviewer #1’s comments:', Zhen Peng, 31 Oct 2018
RC2: 'review of acp-2018-768', Anonymous Referee #2, 04 Sep 2018
- AC2: 'Response to Reviewer #2’s comments:', Zhen Peng, 31 Oct 2018

Peer-review completion

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

AR by Zhen Peng on behalf of the Authors (31 Oct 2018) Author's response

ED: Publish as is (10 Nov 2018) by Yuan Wang

AR by Zhen Peng on behalf of the Authors (13 Nov 2018) Manuscript

Short summary

An EnKF system was developed to simultaneously assimilate multiple surface measurements, including PM₁₀, PM_2.5, SO₂, NO₂, O₃, and CO, via the joint adjustment of ICs and source emissions. Large improvements were achieved in the first 24 h forecast for PM_2.5, PM₁₀, SO₂, and CO during an extreme haze episode that occurred in early October 2014 over the North China Plain, but no improvements were achieved for NO₂ and O₃.