11:30 AM - 11:45 AM
[ACG36-10] Large Eddy Simulations by use of Mesoscale Numerical Weather Prediction Model
★Invited Papers
Keywords:Mesoscale weather prediction model, Turbulence, Extreme weather, Large eddy simulation
Mesoscale numerical weather prediction models have been used to forecast and reproduce a variety of phenomena. In these models, the contribution of micro-scale turbulent eddies has been introduced as parameterizations. However, by extremely increasing the resolution, the larger scale of turbulent eddies can be resolved. This can be regarded as large eddy simulation (LES) in a more reliable treatment of the turbulent eddies. LES has been usually used for studies of the atmospheric boundary layers near the surface.
We have utilized the mesoscale numerical weather prediction models to conduct LES including the free atmosphere outside the boundary layers and real cases. We will present the results of simulations, analyses, and validations of extreme events such as heavy precipitation and strong turbulence in the middle of the troposphere due to the Kelvin-Helmholtz instability that affected aircraft.
We have utilized the mesoscale numerical weather prediction models to conduct LES including the free atmosphere outside the boundary layers and real cases. We will present the results of simulations, analyses, and validations of extreme events such as heavy precipitation and strong turbulence in the middle of the troposphere due to the Kelvin-Helmholtz instability that affected aircraft.