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MODIS chlorophyll-a concentration (Chla) data were assimilated into a coupled hydrodynamic-biological model using an Optimal Interpolation method. Simulations were conducted using MODIS data covering Taihu Lake in May 2009, when algal blooms typically begin to occur. The results of the assimilation approach showed improvements in the estimation of Chla distributions in spatial coherency and temporal...
A three-dimensional numerical model for wind-driven and pollutant transport has been developed which is comprehensive (containing the appropriate physics) and generalized (requiring minimal tuning) and adaptable to various applications of lake environment with complex bathymetry. A concentration-correction method is introduced in the paper which is simple and efficient to keep conservancy for scalar...
Blue algal blooms are constantly observed in Taihu Lake in recent years. Firstly, a two-dimensional hydrodynamic model and drogue tracking method are validated and possible blue algal blooms initiated at Gonghu are studied to find out how wind conditions affect blue algal blooms in Gonghu. Then, surface drogue tracking experiments are performed for blue algal blooms which are initiated at water works...
"Polluted water cluster" was observed near the water source area of Gonghu water work in Gonghu, Taihu Lake on 28th May, 2007. Some of the possible factors causing polluted water cluster, such as wind, rainfall, temperature and bottom mud releasing, are analyzed at first. Then, a two-dimensional hydrodynamic model based on Delft3D-FLOW is adopted to simulate the wind-driven current under...
The agriculture around Taihu Lake is highly developed, but a large amount of sand and organic matter is directly brought into Taihu Lake from farmland in rainy season and is seriously polluting the water quality of the lake. In order to make a quantitative analysis for the influence of organic matter to the water body of Taihu Lake, the area around Taihu Lake is divided into two land area of paddy...
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