Long-Term Simulation of Fine-Grained Sediment Transport in Large Reservoir

摘要: A 30-year simulation of fine-grained, cohesive sediment transport in Watts Bar Reservoir, located Tennessee, demonstrated that the SEDZL model realistically predicts overall patterns erosion and deposition throughout this large reservoir. Good qualitative agreement was achieved between predicted observed trends net sediment-bed-elevation change during model-calibration period, from 1961 to 1991. Quantitative comparison measured bed elevation changes indicated generally able accurately simulate local within yielding a median absolute relative error or 46% areas The 76% incoming sediments period would be trapped reservoir, which is excellent with trapping efficiency 72±6% (95% confidence interval).