Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 18, issue 21
Articles | Volume 18, issue 21
https://doi.org/10.5194/gmd-18-8485-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/gmd-18-8485-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 21
Model description paper
 | 
13 Nov 2025
Model description paper |  | 13 Nov 2025

A double-box model for aircraft exhaust plumes based on the MADE3 aerosol microphysics (MADE3 v4.0)

Monica Sharma, Mattia Righi, Johannes Hendricks, Anja Schmidt, Daniel Sauer, and Volker Grewe

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Short summary
A plume model is developed to simulate aerosol microphysics in a dispersing aircraft plume, including interactions between ice crystals and aerosols in vortex regime. Compared to an instantaneous dispersion approach, the plume approach estimates 15 % lower aviation aerosol number concentrations, due to more efficient coagulation at plume scale. The model is sensitive to background conditions and initialization parameters, such as ice crystal number concentration and fuel sulfur content.
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