Articles | Volume 18, issue 10
Atmos. Chem. Phys., 18, 7109–7129, 2018
https://doi.org/10.5194/acp-18-7109-2018
Atmos. Chem. Phys., 18, 7109–7129, 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 et al.

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Latest update: 17 May 2021
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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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