Effects of different emission inventories on tropospheric ozone and methane lifetime

Acquah, Catherine; Stecher, Laura; Mertens, Mariano; Jöckel, Patrick

doi:https://doi.org/10.5194/acp-25-13665-2025

Articles | Volume 25, issue 20

https://doi.org/10.5194/acp-25-13665-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

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

https://doi.org/10.5194/acp-25-13665-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 20

Research article

|

24 Oct 2025

Research article |

| 24 Oct 2025

Effects of different emission inventories on tropospheric ozone and methane lifetime

Catherine Acquah, Laura Stecher, Mariano Mertens, and Patrick Jöckel

Supplement

https://doi.org/10.5194/acp-25-13665-2025-supplement

Data sets

Effects of different emission inventories on tropospheric ozone and methane lifetime, results of EMIS-01 simulation C. Acquah et al. https://doi.org/10.5281/zenodo.14712802

Effects of different emission inventories on tropospheric ozone and methane lifetime, results of EMIS-02 simulation C. Acquah et al. https://doi.org/10.5281/zenodo.14712940

Effects of different emission inventories on tropospheric ozone and methane lifetime, results of EMIS-01-ODS simulation C. Acquah et al. https://doi.org/10.5281/zenodo.17276193

Model code and software

The Modular Earth Submodel System (2.55.2_no-branch_7639642e_airtrac-SO4) The MESSy Consortium https://doi.org/10.5281/zenodo.8360276

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Short summary

Short-lived ozone precursor species influence the formation of ozone and also the atmospheric lifetime of methane. Our study assesses the effect of two widely used emission inventories of these species on ozone and the methane lifetime. Our results indicate tropospheric ozone and methane lifetime differences of around 4 % even though both emission inventories aim at representing present-day conditions. We further attribute the differences to emissions of individual sectors, e.g. land traffic.