At present, the processes in and the physics of the Planetary Boundary Layer (PBL) over flat, horizontally homogeneous surfaces are basically understood. Starting in the late 70's extensions to the basic theory were seeked for, which were again concerned with idealized settings of inhomogeneity (i.e., gentle topography, steep change in a surface property, or presence of a roughness sublayer). But ...
little is known concerning the turbulence structure of the planetary boundary layer and the associated exchange processes of momentum, sensible and latent heat over steep, mountainous terrain. |
|---|
The present project aims at filling in this gap by creating an unique data set, which will be exploited to derive and test concepts concerning the turbulent exchange over steep orography and its possible description (parameterisation) in numerical models.