一种浅水湖耦合模式系统的发展与应用     

李锦秀  李术军  刘树坤  禹雪中 《湖泊科学》1998,10(S1):437-445

Growing developments in lake basins in China, have adversely affected, the water quality of lake, in particular, the water bodies of many famous shallow lake are seriously polluted in recent years. Some projects have been built up to improve the water quality, for example, the sewage interception project (i.e. Xiyuan tunnel project) and four sewage treatment plants etc. have been built up in Dianchi Lake. In order to predict and evaluate the effects of projects on the water quality, it is necessary to develop a coupled model system, which should mainly include wind, circulation and water quality parameters. This paper describes the development and application of a coupled modeling system in a shallow lake, which include a 3D micro-meteorology model (3DMM), a 2D hydrodynamic model (2DHM) and a 2D water quality model(2DWM).The coupled modeling system has been applied to predict the ejfects of environmental protection projects on water quality in Dianchi Lake.  相似文献   

三峡库区支流富营养化模型开发研究   总被引：15，自引：0，他引：15       下载免费PDF全文

李锦秀  禹雪中  幸治国 《水科学进展》2005,16(6):777-783

为保护三峡库区水环境,应对库区支流富营养化演变态势进行模拟预测.以受三峡水库蓄水影响显著的代表性支流大宁河为例,在考虑营养盐、气候条件(包括水温和光照)对藻类生长速率影响的基础上,针对三峡库区特点,着重研究水动力条件对藻类生长速率的影响规律,进行富营养化模型综合开发研究,并利用三峡水库蓄水后大宁河回水影响区河段实测资料进行模型验证计算.结果表明,该模型能较好地反映三峡水库蓄水后,库区支流水环境条件发生显著变化状态下藻类生长繁衍特点,能够用来进行三峡库区富营养化预测,也可为其他类似水域研究富营养化问题提供参考.  相似文献   

山体遮挡对滇池风生流的影响初探   总被引：3，自引：2，他引：3  

李锦秀  刘树坤  陈喜军  禹雪中 《湖泊科学》1996,8(4):312-318

用二维风生流数值模型模拟滇池湖流运动。滇池在主导风向西南风作用下，假定湖面风场是均匀的，数值模拟的湖流流态与实测湖流结果相差很大。而考虑山体遮挡影响，根据实测湖流期间现有的风情资料，在湖面上构造一非均匀风场，数值模拟结果与实测值基本一致。山体遮挡对滇池风生流的影响是不容忽视的。建议进一步进行湖流和湖面风向、风速监测，并建立过山气流数学模型，深入研究山体遮挡对湖泊风生流的影响。  相似文献