Compartmentalization strategy for coastal flooding mitigation with application to a Northern Adriatic site

IF 4.8 2区 环境科学与生态学 Q1 OCEANOGRAPHY Ocean & Coastal Management Pub Date : 2024-09-12 DOI:10.1016/j.ocecoaman.2024.107362
Chiara Favaretto, Piero Ruol, Luca Martinelli
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Abstract

A method of compartmentalization has been developed to address the safety concerns of urban areas from coastal flooding, especially in situations where reinforcing the first line of defence (dunes, levees, etc.) is challenging due to, for instance, environmental limitations. Various compartmentalization options can be considered and evaluated in order to govern the flooding. Each option should be modelled with a suited numerical tool to better define the alternatives, determine the minimum height of the elements that bound the compartments and verify their effectiveness for the preliminary design, e.g. for the environmental screening stage. The methodology is demonstrated for a real case study, the flooding of Lido di Volano that occurred on November 22, 2022, using a simplified shallow water equations model designed for GPU computing to simulate large-scale flooding scenarios. Two compartmentalization schemes have been identified, both of which involve raising the existing road level. The maximum water levels in different zones of the study area are assessed as a function of crest height. These schemes have proven to be effective in protecting the urban settlement from flooding. Overall, the proposed method of compartmentalization, supported by a real case study analysis, offers a systematic approach to enhance the safety and the resilience of urban coastal areas. This type of solution capitalises on the experience of the local managers and technicians and may represent a shared solution among the coastal governance actors.

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应用于北亚得里亚海地区的沿海洪水缓解分区战略
为了解决沿海洪水对城市地区安全的影响,特别是在由于环境限制等原因,加固 第一道防线(沙丘、堤坝等)具有挑战性的情况下,开发了一种分隔方法。为了控制洪水,可以考虑和评估各种分隔方案。每种方案都应使用合适的数值工具进行建模,以更好地定义替代方案,确定分隔构件的最小高度,并验证其在初步设计(如环境筛选阶段)中的有效性。该方法在一个真实案例研究中进行了演示,即 2022 年 11 月 22 日发生的沃拉诺利多洪水,使用的是为 GPU 计算设计的简化浅水方程模型,用于模拟大规模洪水场景。确定了两种分隔方案,均涉及提高现有道路的水位。研究区域内不同区域的最高水位将作为波峰高度的函数进行评估。事实证明,这些方案能有效保护城市住区免受洪水侵袭。总之,在实际案例分析的支持下,所提出的分区方法为提高城市沿海地区的安全和抗灾能力提供了一种系统方法。这种解决方案利用了当地管理人员和技术人员的经验,可能是沿海治理参与者的共同解决 方案。
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来源期刊
Ocean & Coastal Management
Ocean & Coastal Management 环境科学-海洋学
CiteScore
8.50
自引率
15.20%
发文量
321
审稿时长
60 days
期刊介绍: Ocean & Coastal Management is the leading international journal dedicated to the study of all aspects of ocean and coastal management from the global to local levels. We publish rigorously peer-reviewed manuscripts from all disciplines, and inter-/trans-disciplinary and co-designed research, but all submissions must make clear the relevance to management and/or governance issues relevant to the sustainable development and conservation of oceans and coasts. Comparative studies (from sub-national to trans-national cases, and other management / policy arenas) are encouraged, as are studies that critically assess current management practices and governance approaches. Submissions involving robust analysis, development of theory, and improvement of management practice are especially welcome.
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