Abstract: Two sets of large-eddy simulation data were used to study some of the assumptions about the cloud-topped boundary layer (CTBL) structure which are used in mixed-layer models. The roles of buoyant production and cloud-top ...

Abstract: The large eddy simulation technique is used to search for key factors in determining the entrainment rate, cloud fraction, and liquid water path in the stratocumulus-topped boundary layer (STBL), with the goal of developing ...

Abstract: A large-eddy-simulation (LFS) model explicitly calculates the large-eddy field and parameterizes the small eddies. The large eddies in the atmospheric boundary layer are believed to be much more important and more ...

Abstract: The structure of a stratus-topped boundary layer is observed through large-eddy simulation which includes the interaction of longwave radiation and turbulence processes. This simulated boundary layer has a relatively warm ...

Abstract: closure relationship between subgrid-scale (SGS) updraft?downdraft differences and resolvable-scale (RS) variables is proposed and tested for cloud-resolving models (CRMs), based on a data analysis of a large-eddy simulation ...

Abstract: A number of puzzling features of the skewness of the vertical velocity field, Sw(z), are found in observations and large-eddy simulations (LES) of the buoyancy-driven planetary boundary layer (PBL). For example, observations ...

Abstract: From results Of large-eddy simulations of the clear convective boundary layer and of a stratus-topped boundary layer, mean properties of ?plumes? that consist of ?updrafts? and ?downdrafts? are determined. The plumes are ...

Abstract: From results of large-eddy simulations of the clear convective boundary layer and of a stratus-topped boundary layer, we evaluate the budgets of mass, momentum, heat, moisture, and turbulent kinetic energy within ?plumes? ...

Abstract: Not available

Abstract: Closure assumptions often employed in single-point closure models for boundary-layer applications are evaluated against a neutrally stratified planetary boundary-layer flow generated by large-eddy simulation. The contributions ...