Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 11, issue 10
Articles | Volume 11, issue 10
https://doi.org/10.5194/gmd-11-4269-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-11-4269-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 10
Model description paper
 | 
18 Oct 2018
Model description paper |  | 18 Oct 2018

A representation of the collisional ice break-up process in the two-moment microphysics LIMA v1.0 scheme of Meso-NH

Thomas Hoarau, Jean-Pierre Pinty, and Christelle Barthe

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Latest update: 15 Oct 2025
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Short summary
The break-up of ice crystals in clouds is a possible secondary ice multiplication process to explain observations of very high concentrations of small ice crystals at cold temperature. Here, the process is modeled by considering shocks between fragile aggregates (assemblage of pristine crystals) and large densely rimed crystals of selected sizes. The simulations of two storms illustrate the perturbations caused by the break-up effect (precipitation, ice concentration enhancement).
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