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首页> 外文期刊>Environmental engineering and management journal >ENVIRONMENTAL ANALYSIS OF FLOOD RISK IN URBAN PLANNING: A CASE STUDY IN LAS QUEMADILLAS, CORDOBA, SPAIN
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ENVIRONMENTAL ANALYSIS OF FLOOD RISK IN URBAN PLANNING: A CASE STUDY IN LAS QUEMADILLAS, CORDOBA, SPAIN

机译:城市规划中的洪水风险环境分析:以西班牙科多巴州拉斯奎梅迪拉斯为例

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摘要

This paper presents a mapping procedure for determining the environmental impact of flooding in spatial planning. This procedure is applied to a section of the Guadalquivir River in the Quemadillas sector of Cordoba, southern Spain, where flood risks are of great importance because of improper riverside planning and the absence of prevention measures. We performed a comprehensive environmental analysis in conjunction with hydrological and hydraulic modelling using GIS techniques, allowing us to evaluate the flood hazard phenomena and the environmental impact based on the vulnerability and exposure of human activities. Hec-Ras application is implemented in GIS with GeoHecRas and we simulated flooding processes different flows for return period of 2, 100 and 500 years. Three-dimensional models are made for flood analysis and isobath and isotach maps. These low-cost maps are effective in the prevention and mitigation of flood risks, which makes them useful in the early stages of urban planning.
机译:本文提出了一种用于确定空间规划中洪水对环境的影响的映射程序。该程序适用于西班牙南部科尔多瓦Quemadillas地区瓜达尔基维尔河的一部分,由于河岸规划不当和缺乏预防措施,洪水风险非常重要。我们结合使用GIS技术的水文和水力模型进行了全面的环境分析,使我们能够根据人类活动的脆弱性和暴露程度来评估洪水灾害现象和环境影响。 Hec-Ras应用程序通过GeoHecRas在GIS中实现,我们模拟了2年,100年和500年回归期的不同流量的洪水过程。建立了用于洪水分析以及等值线图和等时线图的三维模型。这些低成本地图可有效预防和缓解洪水风险,因此在城市规划的早期阶段就非常有用。

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