Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 17, issue 4
Articles | Volume 17, issue 4
https://doi.org/10.5194/gmd-17-1511-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-17-1511-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 4
Development and technical paper
 | 
20 Feb 2024
Development and technical paper |  | 20 Feb 2024

Impacts of updated reaction kinetics on the global GEOS-Chem simulation of atmospheric chemistry

Kelvin H. Bates, Mathew J. Evans, Barron H. Henderson, and Daniel J. Jacob

Supplement

https://doi.org/10.5194/gmd-17-1511-2024-supplement

Data sets

Code and files for "Technical note: Impacts of updated rate constants on tropospheric composition" Kelvin H. Bates https://doi.org/10.7910/DVN/IDYV3E

geoschem/GCClassic: GEOS-Chem Classic 14.0.1 (14.0.1) The International GEOS-Chem User Community https://doi.org/10.5281/zenodo.7271974

Model code and software

Code and files for "Technical note: Impacts of updated rate constants on tropospheric composition" Kelvin H. Bates https://doi.org/10.7910/DVN/IDYV3E

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Short summary
Accurate representation of rates and products of chemical reactions in atmospheric models is crucial for simulating concentrations of pollutants and climate forcers. We update the widely used GEOS-Chem atmospheric chemistry model with reaction parameters from recent compilations of experimental data and demonstrate the implications for key atmospheric chemical species. The updates decrease tropospheric CO mixing ratios and increase stratospheric nitrogen oxide mixing ratios, among other changes.
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