Articles | Volume 25, issue 13
https://doi.org/10.5194/acp-25-6881-2025
https://doi.org/10.5194/acp-25-6881-2025
Research article
 | 
08 Jul 2025
Research article |  | 08 Jul 2025

Evidence of tropospheric uplift into the stratosphere via the tropical western Pacific cold trap

Xiaoyu Sun, Katrin Müller, Mathias Palm, Christoph Ritter, Denghui Ji, Tim Balthasar Röpke, and Justus Notholt

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-3981', Anonymous Referee #1, 10 Feb 2025
    • AC1: 'Reply on RC1', Xiaoyu Sun, 19 Mar 2025
  • RC2: 'Comment on egusphere-2024-3981', Anonymous Referee #2, 13 Feb 2025
    • AC2: 'Reply on RC2', Xiaoyu Sun, 19 Mar 2025

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Xiaoyu Sun on behalf of the Authors (19 Mar 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to minor revisions (review by editor) (20 Mar 2025) by Farahnaz Khosrawi
AR by Xiaoyu Sun on behalf of the Authors (24 Mar 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to minor revisions (review by editor) (25 Mar 2025) by Farahnaz Khosrawi
AR by Xiaoyu Sun on behalf of the Authors (04 Apr 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (07 Apr 2025) by Farahnaz Khosrawi
AR by Xiaoyu Sun on behalf of the Authors (07 Apr 2025)  Manuscript 
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Short summary
We studied how air moves from the lower atmosphere to the stratosphere over the tropical western Pacific. Using observations and air tracking, we found that, in winter, air ascends and cold temperatures freeze water out, drying it before it enters the stratosphere. In summer, air tends to sink after cloud formation. This process affects water vapor amounts in the stratosphere, influencing the greenhouse effect and climate.
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