Articles | Volume 18, issue 10
https://doi.org/10.5194/acp-18-7109-2018
https://doi.org/10.5194/acp-18-7109-2018
Research article
 | 
24 May 2018
Research article |  | 24 May 2018

Global modelling of the total OH reactivity: investigations on the “missing” OH sink and its atmospheric implications

Valerio Ferracci, Ines Heimann, N. Luke Abraham, John A. Pyle, and Alexander T. Archibald

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Latest update: 18 Jul 2024
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Short summary
Hydroxyl radicals (OH) control the removal of species emitted in the atmosphere. Field campaigns reported a "missing" OH sink, not included in current atmospheric models. In this work a global model was used to establish the impact of additional OH sinks, based on both observations of the missing sink and newly discovered reactions of OH. Results show modest increases in global atmospheric lifetimes but pronounced regional effects on the abundance of some key species.
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