In Lake Ketel (The Netherlands) the bottom sediment is contaminated with heavy metals and organic micro pollutants. To simulate the effect of management options on transport of polluted bottom sediment STRESS-2d, a 2-dimensional model for sediment transport, resuspension and sedimentation in shallow lakes was adapted for Lake Ketel. Model development, calibration and simulation results are discussed in some detail, with emphasis on the effects of uncertainty in parameter values.

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