Improving collisional growth in Lagrangian cloud models: development and verification of a new splitting algorithm

Schwenkel, Johannes; Hoffmann, Fabian; Raasch, Siegfried

doi:https://doi.org/10.5194/gmd-11-3929-2018

Articles | Volume 11, issue 9

https://doi.org/10.5194/gmd-11-3929-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Particle-based methods for simulating atmospheric aerosol...

https://doi.org/10.5194/gmd-11-3929-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 9

Development and technical paper

|

28 Sep 2018

Development and technical paper |

| 28 Sep 2018

Improving collisional growth in Lagrangian cloud models: development and verification of a new splitting algorithm

Johannes Schwenkel, Fabian Hoffmann, and Siegfried Raasch

Model code and software

The Parallelized Large-Eddy Simulation Model (PALM) – revision 2263 PALM Group https://palm.muk.uni-hannover.de/trac/browser/palm?rev=2263

Short summary

Lagrangian cloud models are a powerful tool to understand cloud microphysics and are increasingly used in the cloud physics community. In this study we present a method designed to improve the warm cloud precipitation process in such models. Our results indicate that using this method is essential for a proper representation of the collisional process of warm clouds, while maintaining an appropriate computational demand.