Articles | Volume 17, issue 5
Atmos. Chem. Phys., 17, 3279–3299, 2017
https://doi.org/10.5194/acp-17-3279-2017
Atmos. Chem. Phys., 17, 3279–3299, 2017
https://doi.org/10.5194/acp-17-3279-2017

Research article 07 Mar 2017

Research article | 07 Mar 2017

Causes of interannual variability over the southern hemispheric tropospheric ozone maximum

Junhua Liu et al.

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AR by Anna Mirena Feist-Polner on behalf of the Authors (07 Feb 2017)  Author's response    Manuscript
ED: Publish as is (08 Feb 2017) by Ken Carslaw
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Short summary
We quantify the relative contribution of processes controlling the interannual variability (IAV) of tropospheric ozone over the southern hemispheric tropospheric ozone maximum (SHTOM) with GMI chemistry transport model. We use various GMI tracer diagnostics, including a StratO3 tracer to quantify the stratospheric impact, and tagged CO tracers to track the emission sources. Our result shows that the stratospheric contribution is the most important factor driving the IAV of upper tropospheric O3.
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