Dynamical drivers of free-tropospheric ozone increases over equatorial Southeast Asia

Stauffer, Ryan M.; Thompson, Anne M.; Kollonige, Debra E.; Komala, Ninong; Al-Ghazali, Habib Khirzin; Risdianto, Dian Yudha; Dindang, Ambun; Fairudz bin Jamaluddin, Ahmad; Sammathuria, Mohan Kumar; Zakaria, Norazura Binti; Johnson, Bryan J.; Cullis, Patrick D.

doi:https://doi.org/10.5194/acp-24-5221-2024

Articles | Volume 24, issue 9

https://doi.org/10.5194/acp-24-5221-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Tropospheric Ozone Assessment Report Phase II (TOAR-II) Community...

https://doi.org/10.5194/acp-24-5221-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 9

Research article

|

06 May 2024

Research article |

| 06 May 2024

Dynamical drivers of free-tropospheric ozone increases over equatorial Southeast Asia

Ryan M. Stauffer, Anne M. Thompson, Debra E. Kollonige, Ninong Komala, Habib Khirzin Al-Ghazali, Dian Yudha Risdianto, Ambun Dindang, Ahmad Fairudz bin Jamaluddin, Mohan Kumar Sammathuria, Norazura Binti Zakaria, Bryan J. Johnson, and Patrick D. Cullis

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Cumulative views and downloads (calculated since 04 Dec 2023)

Month	HTML	PDF	XML	Total
Dec 2023	153	68	12	233
Jan 2024	122	44	5	171
Feb 2024	53	22	5	80
Mar 2024	51	25	7	83
Apr 2024	52	15	10	77
May 2024	290	75	14	379
Jun 2024	57	9	2	68
Jul 2024	63	12	5	80
Aug 2024	91	11	3	105
Sep 2024	44	5	0	49
Oct 2024	33	0	33
Nov 2024	28	7	1	36

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Short summary

SHADOZ balloon-borne ozone measurements over equatorial Southeast Asia from 1998–2022 reveal that ozone increases during the early months of the year are linked to reduced convective storm activity, which typically redistributes and cleans the atmosphere of ozone. These findings challenge models to replicate the trends produced by the SHADOZ and meteorological observations and emphasize the importance of studying monthly or seasonal instead of annual changes for understanding ozone trends.


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