IGF



Atmospheric physics seminar

University of Warsaw Lagrangian Cloud Model (UWLCM): recent developments and future plans

dr inż. Piotr Dziekan

Instytut Geofizyki, Wydział Fizyki, Uniwersytet Warszawski

Nov. 8, 2024, 1:15 p.m.

ul. Pasteura 5, B4.58 and online via Google Meet

UWLCM is a large-eddy simulation (LES) model of clouds developed at the University of Warsaw. I will present a brief overview of the model for those not familiar with it. Next, I will discuss recent developments of the model associated with our involvement in the NextGEMS project. These developments include a novel subgrid-scale (SGS) model based on fractal reconstruction of SGS fields, and the implementation of an anisotropic Smagorinsky turbulence model. I will present preliminary results from an ongoing study examining the sensitivity of stratocumulus clouds to the anisotropic SGS model, aimed at enhancing the representation of these clouds in global storm-resolving models, particularly at "grey-zone" resolutions with highly anisotropic grid cells. Finally, I will discuss future plans for incorporating ice microphysics and numerical improvements, including adaptations to new computing architectures and optimizations, as part of the HANAMI project.

meet.google.com/xhs-tjsa-jir


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