Articles | Volume 20, issue 17
Atmos. Chem. Phys., 20, 10707–10731, 2020
https://doi.org/10.5194/acp-20-10707-2020
Atmos. Chem. Phys., 20, 10707–10731, 2020
https://doi.org/10.5194/acp-20-10707-2020

Research article 11 Sep 2020

Research article | 11 Sep 2020

Attribution of ground-level ozone to anthropogenic and natural sources of nitrogen oxides and reactive carbon in a global chemical transport model

Tim Butler et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Tim Butler on behalf of the Authors (21 Jul 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (24 Jul 2020) by Frank Dentener
RR by Anonymous Referee #1 (24 Jul 2020)
ED: Publish as is (29 Jul 2020) by Frank Dentener
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Short summary
Ground-level ozone (O3) is not directly emitted; it is formed chemically in the atmosphere. Some ground-level O3 is transported from the stratosphere, but most O3 is produced from reactive precursors that are emitted by both natural and anthropogenic sources. We present the results of a novel source apportionment method for ground-level O3. Our results are consistent with previous work and also provide new insights. In particular, we highlight the roles of methane and international shipping.
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