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首页> 外文期刊>Journal of Environmental Science and Health >Hydrodynamic and nutrient modeling in a Mediterranean coastal lagoon
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Hydrodynamic and nutrient modeling in a Mediterranean coastal lagoon

机译：地中海沿岸泻湖的水动力和营养物模拟

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摘要

The USEPA WASP5 modeling system was applied to simulate and evaluate the relationships between external and internal nutrient loadings and water quality of Vistonis lagoon, North Greece for a 2-year time period. The hydrodynamic model DYNHYD5 was calibrated to estimate daily lagoon water level. The water quality models TOXI5 and EUTRO5 were calibrated and verified using meteorological data from a station near the lagoon, and field data (salinity, dissolved oxygen, nutrients and chlorophyll-α concentrations) from seven stations located in the lagoon, for the time period April 1998 to May 1999. Predicted by the model salinity, dissolved oxygen, total phosphorus, total inorganic nitrogen and chlorophyll-a were plotted against observed values and showed good agreement. Model performance was evaluated using scattergrams of predicted versus observed values and the Kolmogorov-Smirnov two-sample goodness-of-fit test at p < 0.05. Sediment sources of nitrogen and phosphorus were important to achieve a successful model calibration. The validated model was also used to test the effectiveness of alternative management scenarios in relation to improvement of the trophic state of the lagoon.
机译：USEPA WASP5建模系统用于模拟和评估希腊北部Vistonis泻湖在2年时间内的内部和外部营养负荷与水质之间的关系。对水动力模型DYNHYD5进行了校准，以估计每日泻湖水位。使用来自泻湖附近一个站点的气象数据以及来自泻湖中七个站点的现场数据（盐度，溶解氧，养分和叶绿素-α浓度）对4月时间段的水质模型TOXI5和EUTRO5进行了校准和验证。 1998年至1999年5月。根据模型的盐度预测，将溶解氧，总磷，总无机氮和叶绿素-a与观测值作图，并显示出良好的一致性。使用预测值与观察值的散点图以及p <0.05的Kolmogorov-Smirnov两样本拟合优度检验评估模型性能。氮和磷的沉积物来源对于成功进行模型校准非常重要。经过验证的模型还用于测试与改善泻湖营养状态有关的替代管理方案的有效性。

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