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首页> 外文期刊>International Journal of Environmental Impacts: Management, Mitigation and Recovery >ARE THE BENEFITS OF INTEGRATED CATCHMENT MODELLING BEING REALIZED IN THE UNITED KINGDOM
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ARE THE BENEFITS OF INTEGRATED CATCHMENT MODELLING BEING REALIZED IN THE UNITED KINGDOM

机译：集成的流域模型的好处吗意识到在英国

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摘要

Historically, hydrological systems have been modelled separately to investigate flood risk. This is due to computational limits and the devolved responsibilities set out in the existing legislation for risk management authorities. This method may result in the true impact of flooding being misrepresented as the interaction between hydrological systems and drainage infrastructure unaccounted for. In contrast, integrated catchment modelling (ICM) is a methodology in which various hydrological systems are explicitly represented in a single flood model. This enables more realistic assessments of flooding sources and mechanisms, and allows for improved communication of risk. This article provides an overview of the use of ICM in the UK; discusses the benefits of and barriers to the use of ICM; and provides case studies that demonstrate the benefits of ICM for multiple end users. Cost-benefit analyses are traditionally carried out using results from separate models, and alleviation schemes are developed and funded based on the outcome. The economic benefits may be underestimated and the scheme under-designed due to inaccuracies inherent in separate modelling approaches. The use of ICM allows for the development of flood alleviation schemes (FASs) that provide multiple benefits by protecting people, properties and infrastructure at risk from combined sources of flooding. As set out in the Flood and Water Management Act 2010, Lead Local Flood Authorities (LLFA) are responsible for strategic flood risk management and as a result are moving towards the use of ICM to open more funding streams for FAS development. ICM provides a tool that demonstrates to multiple stakeholders how they can benefit from a single alleviation scheme. This increases the chances of a scheme reaching construction due to greater funding potential. While there are still barriers to the use of ICM, the benefits are beginning to be realized by LLFAs and other regulatory bodies.
机译：从历史上看,水文系统模型分别探讨洪水风险。这是由于计算和限制在现有的移交责任立法对风险管理当局。方法可能导致洪水的真正影响被误传为之间的交互水文系统和排水设施下落不明。流域模型(ICM)是一种方法各种水文系统明确代表在一个洪水模型。更现实的评估洪水来源和机制,允许有所改善沟通的风险。使用在英国ICM的概述;的好处和ICM的使用障碍;并提供了案例研究,说明了ICM多个终端用户的好处。成本效益分析是传统上进行使用单独的模型,结果扶贫开发和资助计划基于结果。被低估和方案的设计由于固有的不分开建模方法。减轻洪水的发展计划(fas)提供了许多好处保护人们,属性和基础设施结合风险来源的洪水。在防洪和水资源管理法案2010年,洪水导致当地政府(LLFA)负责战略洪水风险管理结果正在向ICM的使用FAS发展开放更多的资金支持。ICM提供了多个工具,演示了利益相关者如何受益于一个单一的扶贫计划。计划达到建设将更大资金的潜力。ICM的使用,好处是开始实现由LLFAs和其他监管机构。

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