Variability of index of refraction from Large Eddy Simulations

Large Eddy Simulation (LES) is able to resolve the variability of the elevated trapping layer on top of the atmospheric boundary layer and hence can be used as a tool to study the uncertainties of using refractive profiles from a mesoscale model that is normally volume averaged within the mesoscale model grid. The variability within a stratocumulus-topped boundary layer is quantified here using LES simulated thermodynamic fields. Comparisons are also made between the LES field and aircraft measurements.