Articles | Volume 18, issue 20
https://doi.org/10.5194/gmd-18-7763-2025
https://doi.org/10.5194/gmd-18-7763-2025
Development and technical paper
 | 
24 Oct 2025
Development and technical paper |  | 24 Oct 2025

A new hybrid particle-puff approach to atmospheric dispersion modeling, implemented in the Danish Emergency Response Model of the Atmosphere (DERMA)

Kasper Skjold Tølløse and Jens Havskov Sørensen

Cited articles

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Short summary
In this study, we improve the short-scale dispersion modeling capabilities of the Danish Emergency Response Model of the Atmosphere (DERMA) by developing and implementing a new hybrid particle-puff description of turbulent diffusion and by updating a few other parameterizations in the model. The new model is evaluated against data from three different tracer gas experiments, and the promising results are an important first step towards also using DERMA for short-range dispersion modeling.
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