Stable Nocturnal Boundary Layers. A Comparison of One-Dimensional and Large-Eddy Simulation Models.
Modeling the atmospheric stable boundary layer(SBL) still represents a challenging task. The suppressed turbulence conditions typical of the night are yet to be understood and put in a rigorous mathematical framework. Modeling the SBL is however important given the effects of pollutants on human health. This paper provides a detailed overview on the state-of-the art in SBL modeling. A one-dimensional model (presently the most successful approach) is compared with the most advanced atmospheric-turbulence modeling technique, Large-Eddy simulation (LES). This three-dimensional turbulence description of the first hundreds of meters from the surface, quite successful in describing convective conditions, has rarely been applied to the SBL. The LES-1D model comparison and the aid of experimental data reveal LES as promising technique for the description of the SBL.
GALMARINI Stefano;
BEETS Kees;
DUYNKERKE Peter G.;
VILA-GUERAU DE A. Jordi;
1998-06-04
JRC16068
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