Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 19, issue 5
Articles | Volume 19, issue 5
https://doi.org/10.5194/gmd-19-1833-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-1833-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 5
Development and technical paper
 | 
04 Mar 2026
Development and technical paper |  | 04 Mar 2026

Deposition velocity concept does not apply to fluxes of ambient aerosol

Rostislav Kouznetsov, Mikhail Sofiev, Andreas Uppstu, and Risto Hänninen

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Short summary
The paper addresses a two-order-of-magnitude discrepancy in deposition velocities of accumulation-mode aerosols measured with different methods. This uncertainty affects current atmospheric deposition models. By explicitly accounting for gas-particle transition and explicitly evaluating the observed quantities we could reproduce the observations . Resolving the discrepancy, reduces uncertainties in simulated concentrations and fallout.
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