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15:45
15 mins
Implicit large-eddy simulation of the stratocumulus-topped boundary layer: a grid sensitivity study
Jesper G. Pedersen, Szymon P. Malinowski, Marta K. Kopeć
Session: Atmospheric turbulence 2
Session starts: Tuesday 25 August, 15:00
Presentation starts: 15:45
Room: Room C
Jesper G. Pedersen (University of Warsaw)
Szymon P. Malinowski (University of Warsaw)
Marta K. Kopeć (University of Warsaw)
Abstract:
A range of implicit large-eddy simulations of the stratocumulus-topped boundary layer is performed to study the influence of grid resolution on selected parameters including liquid water path and second and third moments of vertical velocity fluctuations. The simulations are based on two sets of aircraft measurements, which are also used to evaluate the results of the simulations. The specific case presented here indicates that simulations with a grid aspect ratio accounting for the anisotropic nature of the turbulence near the surface and at the top of the boundary layer lead to better agreement with measurements than simulations with an isotropic grid.