Articles | Volume 14, issue 1
Geosci. Model Dev., 14, 495–519, 2021
https://doi.org/10.5194/gmd-14-495-2021

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

Geosci. Model Dev., 14, 495–519, 2021
https://doi.org/10.5194/gmd-14-495-2021

Model description paper 26 Jan 2021

Model description paper | 26 Jan 2021

A revised dry deposition scheme for land–atmosphere exchange of trace gases in ECHAM/MESSy v2.54

Tamara Emmerichs et al.

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Short summary
Dry deposition to vegetation is a major sink of ground-level ozone. Its parameterization in atmospheric chemistry models represents a significant source of uncertainty for global tropospheric ozone. We extended the current model parameterization with a relevant pathway and important meteorological adjustment factors. The comparison with measurements shows that this enables a more realistic model representation of ozone dry deposition velocity. Globally, annual dry deposition loss increases.