Inhaltszusammenfassung

A microstructure profiler was designed especially for the investigation of the diurnal dynamics of turbulent mixing in shallow lakes. 7 hours observation of these dynamics in a shallow, polymictic lake shows a multitude of different mixing processes acting together on very short time-scales. Estimated turbulent diffusivities for the surface mixed layer, using the Cox number method, are lognormally distributed with a mean of K-z approximate to 10(-5) m(2) s(-1). The results are discussed withi...A microstructure profiler was designed especially for the investigation of the diurnal dynamics of turbulent mixing in shallow lakes. 7 hours observation of these dynamics in a shallow, polymictic lake shows a multitude of different mixing processes acting together on very short time-scales. Estimated turbulent diffusivities for the surface mixed layer, using the Cox number method, are lognormally distributed with a mean of K-z approximate to 10(-5) m(2) s(-1). The results are discussed within the context of their relevance for modelling the effect of turbulent mixing on phytoplankton primary production. » weiterlesen» einklappen

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