P7.1 Characterization of the stability conditions and mixing length with distribution of the high frequency Richardson Number in the lower marine atmospheric boundary layer

Thursday, 12 June 2008
Aula Magna
Abha Sood, University of Oldenburg, Oldenburg, Germany; and K. Suselj

The high frequency turbulence in atmospheric mesoscale models is not resolved, but since its influence is crucial in vertical mixing, it is parametrized in the model. The stability conditions are derived from the high frequency measurements at the offshore FINO-1 mast for different heights. The basic parameters of the atmospheric boundary layer such as the mixing length which controls the vertical mixing are studied to verify the mesoscale model parametrization by examining the simulation results. Some applications are related to optimization of wind power generation and pollution studies which require precise high resolution temporal and spatial characteristics of the wind field in the lower planetary boundary layer.
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