Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 17, issue 5
Articles | Volume 17, issue 5
https://doi.org/10.5194/acp-17-3279-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-17-3279-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 17, issue 5
Research article
 | 
07 Mar 2017
Research article |  | 07 Mar 2017

Causes of interannual variability over the southern hemispheric tropospheric ozone maximum

Junhua Liu, Jose M. Rodriguez, Stephen D. Steenrod, Anne R. Douglass, Jennifer A. Logan, Mark A. Olsen, Krzysztof Wargan, and Jerald R. Ziemke

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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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