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Comparison of the results of tracer experiments in lakes with predictions based on horizontal mixing models

Comparison of the results of tracer experiments in lakes with predictions based on horizontal mixing models

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PEETERS, Frank, Alfred WÜEST, Dieter M. IMBODEN, 1993. Comparison of the results of tracer experiments in lakes with predictions based on horizontal mixing models. In: Verhandlungen der Internationalen Vereinigung für Limnologie. 25, pp. 69-74

@article{Peeters1993Compa-8415, title={Comparison of the results of tracer experiments in lakes with predictions based on horizontal mixing models}, year={1993}, volume={25}, journal={Verhandlungen der Internationalen Vereinigung für Limnologie}, pages={69--74}, author={Peeters, Frank and Wüest, Alfred and Imboden, Dieter M.} }

First publ. in: Verhandlungen der Internationalen Vereinigung für Limnologie 25 (1993), pp. 69-74 Imboden, Dieter M. Mixing processes playa major role in the distribution of dissolved substances and particles, including plankton,in natural waters. In lakes, vertical mixing has been studied extensively, while studies of horizontal mixing are rare. Lakes are commonly assumed to be horizontally homogeneous, and consequently horizontal mixing is frequently neglected. However, its effects can be of great importance to processes occurring at the lake boundaries and to water pollution studies, since horizontal turbulent diffusion is important in transporting substances over great distances and in diluting high concentrations caused for example by accidental pollution events. Up until now, horizontal mixing has been investigated mainly in very large water bodies ( e.g. in the ocean by OKUBO 1971 and in Lake Ontario by MURTHY 1976), or in very small lakes (e.g. by QUAY et al. 1979). With the objective of obtaining a better understanding of relative diffusion (diffusion relative to the centre of mass) in the hypolimnion of medium-sized lakes (approx. 25 km2), three tracer experiments were conducted in the course of this research. In the following section the experimental technique and the method of data reduction is described very briefly (for a detailed description see PEETERS& WUEST 1992). Subsequently, the experimental results are presented and compared with MURTHY'S (1976) Lake Ontario data and with the ocean data of OKUBO (1971) and EWART & BENDINER (1981). This is followed by a short discussion of the applicability of some models describing horizontal diffusion. 2011-03-24T17:43:25Z Peeters, Frank Peeters, Frank Comparison of the results of tracer experiments in lakes with predictions based on horizontal mixing models eng Wüest, Alfred Wüest, Alfred 1993 2011-03-24T17:43:25Z deposit-license application/pdf Imboden, Dieter M.

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