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首页> 外文会议>MWWD amp; IEMES 2012 >Development of a prediction tool for beach water quality at the Belgian coastline
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Development of a prediction tool for beach water quality at the Belgian coastline

机译：开发比利时海岸线上海滩水质的预测工具

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摘要

Faecal bacteria can enter the coastal water after a sewage overflow event that can occur during intense rainfall events. Usually thesernoverflow locations are situated in harbours, rivers or canals, that can be tide-dependent. The faecal plume will disperse along the coastalrnzone that includes recreational swimming areas and could cause a potential health hazard. The Flemish Environmental Agency (VMM)rnmonitors the water quality of bathing areas at the Belgian Coastline. Water samples are collected and analysed in the laboratory, whichrntakes 24-48 hours to process. During this time the bathers may be exposed to a potential health risk. Therefore, this hindcast systemrnshould be supported by a smart forecast system to predict potential faecal contamination in these bathing areas in advance.rnInternational Marine and Dredging Consultants (IMDC) developed a beach water quality prediction tool for the Flemish EnvironmentalrnAgency (VMM). An important aspect of this study was the set-up of a numerical hydrodynamic model of the coastal zone that simulatesrnthe dispersal of faecal bacteria. A 3-dimensional hydrodynamical model of the harbour and coastal zone was set up and calibrated tornsimulate tidal currents and sea-harbour exchange flows. The influence of tidal phase, tidal amplitude, decay rate and spill size on thernplume geometry was investigated. This sensitivity analysis identifies the most important governing factors that influence the plumerndispersion at the Belgian Coastline. A webtool integrating this knowledge is used to predict when and where beach water quality couldrnbe compromised after a particular event. Currently three harbours at the Belgian coast are investigated (Nieuwpoort, Oostende,rnBlankenberge). The final tool should be used together with on-site measurements of water quality. It helps to understand therntransportation paths of faecal bacteria towards the beaches and will assist decision makers in reacting swift and focussed to thesernpotentially harmful events.
机译：在强烈降雨事件期间可能发生的污水溢出事件之后，粪便细菌可以进入沿海水域。通常，sernoverflow位置位于可能依赖于潮汐的港口，河流或运河中。粪便羽流将沿沿海地带散布，包括休闲游泳区，并可能造成潜在的健康危害。法兰德斯环境局（VMM）监测比利时海岸线沐浴区的水质。收集水样并在实验室进行分析，这需要24-48小时进行处理。在这段时间内，沐浴者可能面临潜在的健康风险。因此，应使用智能预测系统来支持此后预报系统，以便提前预测这些沐浴区的潜在粪便污染。国际海洋与疏Consultants顾问公司（IMDC）为佛兰德环境署（VMM）开发了海滩水质预测工具。这项研究的一个重要方面是建立海岸带数值水动力模型，以模拟粪便细菌的扩散。建立了港口和沿海地区的三维水动力模型，并进行了校准，以模拟潮流和海港交换流量。研究了潮汐相位，潮汐振幅，衰减率和溢出尺寸对软泥浆几何形状的影响。该敏感性分析确定了影响比利时海岸线羽状扩散的最重要的控制因素。整合了这些知识的网络工具可用于预测特定事件后何时何地会损害海滩水质。目前，对比利时海岸的三个港口（Nieuwpoort，Oostende，rnBlankenberge）进行了调查。最终工具应与现场水质测量一起使用。它有助于了解粪便细菌向海滩的传播途径，并有助于决策者迅速做出反应并集中精力应对潜在的有害事件。

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  • 来源
    《MWWD amp; IEMES 2012》|2012年|1-12|共12页
  • 会议地点 Montenegro(ME)
  • 作者

    Wieter Boone; Mark Bollen; Gijsbert Van Holland; Mieke Mathys; Joachim Pelicaen; Martin Verdievel; Marc Sas;

  • 作者单位

    IMDC (International Marine and Dredging Consultants)- Coveliersstraat 15, B-2600 Antwerp,Belgium- +32 3 270 92 54 -Wieter.Boone@imdc.be;

    IMDC - Coveliersstraat 15, B-2600 Antwerp, Belgium- Mark.Bollen@imdc.be;

    IMDC - Coveliersstraat 15, B-2600 Antwerp, Gijsbert.VanHolland@imdc.be;

    IMDC - Coveliersstraat 15, B-2600 Antwerp, Mieke.Mathys@imdc.be;

    Responsible evaluation Waterquality, Flemish Environmental Agency (VMM), j.pelicaen@vmm.be;

    Headresponsible of monitoring network surface water, Flemish Environmental Agency (VMM), ma.verdievel@vmm.be;

    Estuarine Systems, Morphology and Dredging Group, IMDC - Coveliersstraat 15, B-2600 Antwerp,Belgium- Marc.Sas@imdc.be;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Plume modelling; numerical modelling; water quality; prediction; faecal contamination on beaches;

    机译：羽状模型;;数值模型;;水质;;预测;;海滩上的粪便污染;

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