Development and application of “U.S.E.D.”: A hydroclimate lake stratification model |
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Authors: | B Henderson-Sellers |
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Institution: | Department of Mathematics, University of Salford, Salford, M5 4WT, Great Britain |
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Abstract: | Two model types are currently in use to model the thermal stratification cycle in lakes and reservoirs: the eddy diffusion and the mixed layer (or integral energy) approaches. Here the former is analysed and developments are proposed to remove the empiricisms previously implicit in these models. These discussions permit the reformulation of KH0 independently of current shear, together with an expression for Ri. The deduced formulae are in good agreement with observations. The newly formulated model (the University of Salford eddy diffusion model, U.S.E.D.) is subsequently used in simulations of lakes and reservoirs at different latitudes which are found to be in good agreement with observations without requiring inter-site calibration. |
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