Eco-hydraulic Modelling of Eutrophication for Reservoir Management

Eco-hydraulic Modelling of Eutrophication for Reservoir Management

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This study presents an systematic approach to water quality assessment, hybrid modelling and decision support for eutrophication management in deep reservoirs. It is found that during the summer monsoon the catchment runoff into the Yongdam reservoir induces a transfer of pollutants from a middle stratified layer to the surface layer. Although the transport mechanism limits nutrient accumulation on the bottom of the reservoir, it also offers an opportunity for on-going algae production in the surface water. Physically based modelling is used to understand the process of micro-scale turbulent mixing and its impact on the nutrient uptake by algae. Further, a data-driven model using clustering and partial least squares regression which uses results from a physically based model of the reservoir successfully predicts Chlorophyll-a concentrations.Flow rate, meteorological conditions and water quality were monitored over three years, 2005-2007 at ten sampling stations in the reservoir as ... monitored at three depths in the water column identify double thermoclines of the reservoir water body and turbid density flows due to ... The middle layer, due to density flows during thermal stratification, shows an opposite results compared to the surface layer.

Title:Eco-hydraulic Modelling of Eutrophication for Reservoir Management
Author:Nahm-chung Jung
Publisher:CRC Press - 2010-05-11


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