Influence of small scale heterogeneities on the near surface turbulence structure
Responsible: Linda Voß
Project type: Diplomarbeit (equivalent to master thesis)
Duration: 22/09/2009-21/09/2010

Inhomogeneities due to differences in the surface structure may trigger secondary circulations in the convective boundary layer. Turbulence measurements with the eddy-covariance method are not able to detect these fluxes. Heterogeneities with diameters of a few hundred meters are therefore suspected to be partly responsible for the non-closure of the energy balance in a height of 2 m (height of energy balance stations).

Within this thesis high resolution LES simulations for such small scale heterogeneities shall be performed and analyzed with respect to possible stationary near surface circulations.