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

Data sets

Modelling the impacts of iodine chemistry on the northern Indian Ocean marine boundary layer A. Mahajan https://doi.org/10.17632/jc8wtyx5sg.1

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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.