Shipborne measurements of total OH reactivity around the Arabian Peninsula and its role in ozone chemistry

Pfannerstill, Eva Y.; Wang, Nijing; Edtbauer, Achim; Bourtsoukidis, Efstratios; Crowley, John N.; Dienhart, Dirk; Eger, Philipp G.; Ernle, Lisa; Fischer, Horst; Hottmann, Bettina; Paris, Jean-Daniel; Stönner, Christof; Tadic, Ivan; Walter, David; Lelieveld, Jos; Williams, Jonathan

doi:https://doi.org/10.5194/acp-19-11501-2019

Articles | Volume 19, issue 17

https://doi.org/10.5194/acp-19-11501-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-11501-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 17

Research article

|

12 Sep 2019

Research article |

| 12 Sep 2019

Shipborne measurements of total OH reactivity around the Arabian Peninsula and its role in ozone chemistry

Eva Y. Pfannerstill, Nijing Wang, Achim Edtbauer, Efstratios Bourtsoukidis, John N. Crowley, Dirk Dienhart, Philipp G. Eger, Lisa Ernle, Horst Fischer, Bettina Hottmann, Jean-Daniel Paris, Christof Stönner, Ivan Tadic, David Walter, Jos Lelieveld, and Jonathan Williams

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Final revised paper (published on 12 Sep 2019)
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Interactive discussion

Status: closed

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

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RC1: 'Review of Pfannerstill et al., Atmos. Chem. Phys. Discuss., doi.org/10.5194/acp-2019-416', Anonymous Referee #1, 21 Jun 2019
- AC1: 'Reply to Anonymous Referee #1', Eva Y. Pfannerstill, 17 Jul 2019
RC2: 'Comment', Anonymous Referee #2, 28 Jun 2019
- AC2: 'Reply to Anonymous Referee #2', Eva Y. Pfannerstill, 17 Jul 2019

Peer-review completion

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

AR by Eva Y. Pfannerstill on behalf of the Authors (29 Jul 2019) Author's response Manuscript

ED: Publish subject to minor revisions (review by editor) (21 Aug 2019) by Frank Keutsch

AR by Eva Y. Pfannerstill on behalf of the Authors (22 Aug 2019) Author's response Manuscript

ED: Publish as is (22 Aug 2019) by Frank Keutsch

AR by Eva Y. Pfannerstill on behalf of the Authors (22 Aug 2019)

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Short summary

The Arabian Peninsula is a global hot spot of ozone pollution. Our measurements, made on a ship in summer 2017, indicate underlying reasons. Despite being at sea, we observed ozone-forming reactive trace gases (measured as so-called total OH reactivity) comparable to highly populated urban regions in amount and composition. This is due to strong emissions from oil extraction and ship traffic. These emissions were quickly converted to ozone due to intense solar irradiation and high temperatures.