Articles | Volume 22, issue 23
Research article
30 Nov 2022
Research article |  | 30 Nov 2022

The unexpected high frequency of nocturnal surface ozone enhancement events over China: characteristics and mechanisms

Cheng He, Xiao Lu, Haolin Wang, Haichao Wang, Yan Li, Guowen He, Yuanping He, Yurun Wang, Youlang Zhang, Yiming Liu, Qi Fan, and Shaojia Fan


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2022-310', Anonymous Referee #1, 20 Jul 2022
  • RC2: 'Comment on acp-2022-310', Anonymous Referee #2, 25 Jul 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Xiao Lu on behalf of the Authors (11 Sep 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (16 Sep 2022) by Graciela Raga
RR by Anonymous Referee #1 (21 Sep 2022)
RR by Anonymous Referee #3 (29 Oct 2022)
ED: Publish subject to technical corrections (31 Oct 2022) by Graciela Raga
AR by Xiao Lu on behalf of the Authors (04 Nov 2022)  Author's response   Manuscript 
Short summary
We report that nocturnal ozone enhancement (NOE) events are observed at a high annual frequency of 41 % over 800 sites in China in 2014–2019 (about 50 % higher than that over Europe or the US). High daytime ozone provides a rich ozone source in the nighttime residual layer, determining the overall high frequency of NOE events in China, and enhanced atmospheric mixing then triggers NOE events by allowing the ozone-rich air in the residual layer to be mixed into the nighttime boundary layer.
Final-revised paper