Abstract: In the E ? ? turbulence model an eddy-exchange coefficient is evaluated from the turbulent kinetic energy E and viscous dissipation ?. In this study we will apply the E ? ? model to the stable and neutral atmospheric ...

Abstract: A one-dimensional model which has previously been tested against observational data is used to study the diurnal variation of a marine stratocumulus layer. The influence of the shortwave radiative heating during different ...

Abstract: An observational study of the cloud-topped atmospheric boundary layer (ABL) during a strong gale reveals that the turbulent boundary layer was dominated by shear instead of convection. A one-dimensional ensemble-averaged ...

Abstract: A large eddy simulation (LES) model, used for studying the dry convective boundary layer, has been extended with an equation for the total water specific humidity and a condensation scheme to simulate the partly cloudy ...

Abstract: A multilevel ensemble-averaged model has been developed to study the cloud-topped atmospheric boundary layer (ABL). Turbulence closure is formulated by using an equation for the turbulent kinetic energy and either a ...

Abstract: The nocturnal cycle of nitrogen oxides in the atmospheric boundary layer is studied by means of a one-dimensional model. The model solves the conservation equations of momentum, entropy, total water content, and of five ...

Abstract: An instrument to measure ultraviolet actinic flux in and outside clouds was constructed and calibrated. Characteristics of the instrument axe: 1) it is equipped with gallium phosphide photodiodes, 2) its isotropic directional ...