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10:45
15 mins
Large eddy simulations of weakly heated stratocumulus top boudary layer
Marta Kopec, Szymon Malinowski, Zbigniew Piotrowski
Session: Atmospheric turbulence 3
Session starts: Wednesday 26 August, 10:30
Presentation starts: 10:45
Room: Room C
Marta Kopec (Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland)
Szymon Malinowski (Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland)
Zbigniew Piotrowski (Institute of Meteorology and Water Management, Warsaw, Poland)
Abstract:
Performing Large Eddy Simulations (LES) of marine stratocumulus in the weakly heated boundary layer is an opportunity to evaluate the relative importance of radiative cooling and of a wind shear in cloud top region on cloud structure. It is shown that cooling due to longwave radiation influences the convective circulation in the atmospheric boundary layer and counteracts dilution caused by the wind shear.