Articles | Volume 21, issue 12
Atmos. Chem. Phys., 21, 9909–9930, 2021
https://doi.org/10.5194/acp-21-9909-2021

Special issue: The atmospheric chemistry box model CAABA/MECCA (GMD/ACP inter-journal...

Special issue: The Modular Earth Submodel System (MESSy) (ACP/GMD inter-journal...

Atmos. Chem. Phys., 21, 9909–9930, 2021
https://doi.org/10.5194/acp-21-9909-2021

Research article 01 Jul 2021

Research article | 01 Jul 2021

Oxidation of low-molecular-weight organic compounds in cloud droplets: global impact on tropospheric oxidants

Simon Rosanka et al.

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Latest update: 27 Oct 2021
Short summary
In-cloud destruction of ozone depends on hydroperoxyl radicals in cloud droplets, where they are produced by oxygenated volatile organic compound (OVOC) oxygenation. Only rudimentary representations of these processes, if any, are currently available in global atmospheric models. By using a comprehensive atmospheric model that includes a complex in-cloud OVOC oxidation scheme, we show that atmospheric oxidants are reduced and models ignoring this process will underpredict clouds as ozone sinks.
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