Articles | Volume 16, issue 19
Atmos. Chem. Phys., 16, 12477–12493, 2016
https://doi.org/10.5194/acp-16-12477-2016

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

Atmos. Chem. Phys., 16, 12477–12493, 2016
https://doi.org/10.5194/acp-16-12477-2016

Research article 05 Oct 2016

Research article | 05 Oct 2016

Global tropospheric hydroxyl distribution, budget and reactivity

Jos Lelieveld et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Wenzel on behalf of the Authors (15 Jul 2016)  Author's response
ED: Referee Nomination & Report Request started (19 Jul 2016) by Maria Kanakidou
RR by Anonymous Referee #2 (27 Jul 2016)
RR by Anonymous Referee #3 (08 Aug 2016)
RR by Anonymous Referee #4 (10 Aug 2016)
ED: Reconsider after minor revisions (Editor review) (22 Aug 2016) by Maria Kanakidou
AR by Johannes Lelieveld on behalf of the Authors (27 Aug 2016)  Author's response    Manuscript
ED: Publish as is (18 Sep 2016) by Maria Kanakidou
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Short summary
The self-cleaning capacity of the atmosphere is controlled by hydroxyl (OH) radicals in the troposphere. There are primary and secondary OH sources, the former through the photodissociation of ozone, the latter through OH recycling. We used a global model, showing that secondary sources are larger than assumed previously, which buffers OH. Complementary OH formation mechanisms in pristine and polluted environments, connected through transport of ozone, can maintain stable global OH levels.
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