University of Warsaw Lagrangian Cloud Model (UWLCM) 1.0: a modern large-eddy simulation tool for warm cloud modeling with Lagrangian microphysics

Dziekan, Piotr; Waruszewski, Maciej; Pawlowska, Hanna

doi:https://doi.org/10.5194/gmd-12-2587-2019

Articles | Volume 12, issue 6

https://doi.org/10.5194/gmd-12-2587-2019

© Author(s) 2019. 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-12-2587-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 6

Model description paper

|

01 Jul 2019

Model description paper |

| 01 Jul 2019

University of Warsaw Lagrangian Cloud Model (UWLCM) 1.0: a modern large-eddy simulation tool for warm cloud modeling with Lagrangian microphysics

Piotr Dziekan, Maciej Waruszewski, and Hanna Pawlowska

Model code and software

University of Warsaw Lagrangian Cloud Model v1.0 P. Dziekan and M. Waruszewski https://doi.org/10.5281/zenodo.2791156

libmpdata++ v1.2.0 A. Jaruga, S. Arabas, D. Jarecka, M. Waruszewski, and P. Dziekan https://doi.org/10.5281/zenodo.2787740

libcloudphx++ code v2.1.0 S. Arabas, A. Jaruga, P. Dziekan, M. Waruszewski, and D. Jarecka https://doi.org/10.5281/zenodo.2790277

Short summary

A new numerical model for clouds is presented. It is designed for detailed studies of the small-scale behavior of cloud droplets within a domain large enough to model cloud field. To achieve this, droplets are modeled in a Lagrangian manner and calculations are done on GPU accelerators. Comparison with models that use Eulerian descriptions of droplets reveals discrepancies in the amount of precipitation. This suggests that some effects important for rain production are missing in current models.