Numerical Modelling

MI has a long tradition in developing and maintaining weather and climate models of different complexity from 1D toy models without spatial scales and models based on the shallow-water equations to full-scale 3D climate models like PUMA (Portable University Model of the Atmosphere) and PLASIM (Planet Simulator). Ongoing research focuses on the development and applications of TIGAR (Transient Inertia-Gravity And Rossby wave dynamics model) that applies the Hough harmonics as the expansion functions. The associated wave decomposition software MODES is another extensively used tool.

Urban meteorology studies are performed with the obstacle resolving model MITRAS, and the mesoscale model METRAS. To investigate the small-scale range of weather and climate processes, in particular long-open problems in stratified turbulence, boundary layers, and moist convection and clouds, we develop Tlab, which allows us to perform direct numerical simulations and better understand the smallest resolved scales.

Working groups: Atmospheric Dynamics and Predictability, Atmospheric Turbulence and Boundary Layers, Clouds and Convection