Influence of tropical cyclones on tropospheric ozone: possible implications

Das, Siddarth Shankar; Ratnam, Madineni Venkat; Uma, Kizhathur Narasimhan; Subrahmanyam, Kandula Venkata; Girach, Imran Asatar; Patra, Amit Kumar; Aneesh, Sundaresan; Suneeth, Kuniyil Viswanathan; Kumar, Karanam Kishore; Kesarkar, Amit Parashuram; Sijikumar, Sivarajan; Ramkumar, Geetha

doi:10.5194/acp-16-4837-2016

Articles | Volume 16, issue 8

https://doi.org/10.5194/acp-16-4837-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-4837-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 8

Research article

|

19 Apr 2016

Research article |

| 19 Apr 2016

Influence of tropical cyclones on tropospheric ozone: possible implications

Siddarth Shankar Das, Madineni Venkat Ratnam, Kizhathur Narasimhan Uma, Kandula Venkata Subrahmanyam, Imran Asatar Girach, Amit Kumar Patra, Sundaresan Aneesh, Kuniyil Viswanathan Suneeth, Karanam Kishore Kumar, Amit Parashuram Kesarkar, Sivarajan Sijikumar, and Geetha Ramkumar

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Dec 2023	49	2	2	53
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Latest update: 08 Nov 2025

Short summary

The present study examines the role of tropical cyclones in the enhancement of tropospheric ozone. The most significant and new observation reported is the increase in the upper-tropospheric ozone by 20–50 ppbv, which has extended down to the middle and lower troposphere. The descent rate of enhanced ozone layer during the passage of tropical cyclone is 0.8–1 km day⁻¹. Enhancement of surface ozone concentration by ~ 10 ppbv in the daytime and 10–15 ppbv at night-time is observed.