Modelling the impacts of iodine chemistry on the  northern Indian Ocean marine boundary layer

Mahajan, Anoop S.; Li, Qinyi; Inamdar, Swaleha; Ram, Kirpa; Badia, Alba; Saiz-Lopez, Alfonso

doi:https://doi.org/10.5194/acp-21-8437-2021

Articles | Volume 21, issue 11

https://doi.org/10.5194/acp-21-8437-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-8437-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 11

Research article

|

03 Jun 2021

Research article |

| 03 Jun 2021

Modelling the impacts of iodine chemistry on the northern Indian Ocean marine boundary layer

Anoop S. Mahajan, Qinyi Li, Swaleha Inamdar, Kirpa Ram, Alba Badia, and Alfonso Saiz-Lopez

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Final revised paper (published on 03 Jun 2021)
Supplement to the final revised paper
Preprint (discussion started on 10 Dec 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of “Modelling the Impacts of Iodine Chemistry on the Northern Indian Ocean Marine Boundary Layer” by Mahajan et al., ACPD, 2020', Rafael Pedro Fernandez, 13 Jan 2021
RC2: 'review', Rolf Sander, 21 Jan 2021
AC1: 'Comment on acp-2020-1219', Anoop Mahajan, 23 Mar 2021

Peer-review completion

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

AR by Anoop Mahajan on behalf of the Authors (23 Mar 2021) Author's response Author's tracked changes Manuscript

ED: Referee Nomination & Report Request started (25 Mar 2021) by Jens-Uwe Grooß

RR by Rafael Pedro Fernandez (25 Mar 2021)

RR by Rolf Sander (29 Mar 2021)

ED: Publish as is (29 Mar 2021) by Jens-Uwe Grooß

AR by Anoop Mahajan on behalf of the Authors (30 Mar 2021) Manuscript

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Short summary

Using a regional model, we show that iodine-catalysed reactions cause large regional changes in the chemical composition in the northern Indian Ocean, with peak changes of up to 25 % in O₃, 50 % in nitrogen oxides (NO and NO₂), 15 % in hydroxyl radicals (OH), 25 % in hydroperoxyl radicals (HO₂), and up to a 50 % change in the nitrate radical (NO₃). These results show the importance of including iodine chemistry in modelling the atmosphere in this region.