Mixed Layer Modelling of Stratification in Lakes

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by Donald R. F. Harleman, MIT, Ralph M. Parsons Lab, Cambridge, MA, USA,

Document Type: Proceeding Paper

Part of: Water for Resource Development

Abstract: Mathematical models for vertical heat transfer processes in lakes and reservoirs are grouped into two classes: diffusion models and mixed layer models. In recent years much of the progress in modelling lake and reservoir stratification has focussed on mixed layer entrainment models. Mixed layer models require a wind-mixing algorithm that relates turbulent kinetic energy input by wind shear to potential energy change by entrainment of hypolimnetic water across the thermocline into the upper mixed layer. Some recent progress in the development of mixed layer models is reviewed.

Subject Headings: Mathematical models | Hydrologic models | Wind power | Lakes | Reservoirs | Entrainment | Mathematics | Water stratification |

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