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Sandscaping for Mitigating Coastal Flood and Erosion Risk to Energy Infrastructure on Gravel Shorelines: a case study approach

用于减轻砾石海岸能源基础设施沿海洪水和侵蚀风险的沙化：案例研究方法

基本信息

批准号：
NE/M008061/1
负责人：
Andrew Plater
金额：
$ 5.89万
依托单位：
University of Liverpool
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2014
资助国家：
英国
起止时间：
2014 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=NE%2FM008061%2F1
关键词：
Sandscaping Mitigating Coastal Flood Erosion

项目摘要

The proposed research aims to extend work that is already underway for other coastal energy installations around the UK, to provide essential detail on future flood risk and impacts on existing coastal energy infrastructure and develop a decision-support tool (open source GIS) for guiding operational and strategic actions. This is essential for building resilience across the energy sector to extreme events (e.g. coastal storms, high river flows) and longer-term climate change (e.g. sea-level rise, wave climate) in a way that does not rely on emergency measures or impact greatly on consumer energy bills. The project also contributes significantly to taking forward our current energy strategy (nuclear new build, offshore renewables, energy infrastructure investment, building energy security), to enhancing flood resilience in coastal lowlands and low-lying river floodplains, and to reducing our reliance on hard engineering solutions to coastal defence.Research is divided into two stages. The first is a flood risk assessment based on modeling extreme levels from sea-level rise, storms, wave overtopping and high river flows. This assessment will be the input to an open-source GIS to provide a range of energy and coastal stakeholders with a decision-support system (DSS) for operational and strategic planning. This builds directly on the methodology being developed as part of the ARCoES project (http://www.liv.ac.uk/geography-and-planning/research/adaptation-and-resilience-of-coastal-energy-supply/) for the NW region and nuclear sites at Hinkley Point, Sizewell, Bradwell and Sellafield. The DSS is designed as a decision-support tool for the energy industry in responding in a planned and timely way to extreme events and strategically to future climate change through staged investment. The DSS is also being used as a practical and accessible tool by coastal stakeholders and communities to identify the timing and location of key tipping points where/when strategic coastal planning options will need to be re-evaluated within existing shoreline management plans. The second stage is a scoping study for 'sandscaping' that follows the model being developed in the Netherlands for large-scale, self-sustaining beach recharge, thus providing the necessary sediment reservoir for coastal geomorphic systems to respond positively to sea-level rise and to be resilient to storm events. This innovative approach requires both fundamental and applied research to establish feasibility and to identify any negative consequences that might arise down-drift or offshore from the target site. Here, the project brings together state-of-the-art understanding and applications of hydrodynamic and sediment modeling from the National Oceanography Centre (NOC) with business, engineering and environmental expertise in 'soft' coastal defence and strategic coastal planning at The Crown Estate (TCE) and Royal Haskoning-DHV (RHDHV) to establish a methodology for establishing the parameters for a sandscaping project with respect to coastal hydrodynamics, sediment source and transport, coastal morphological evolution, wider environmental impact, and project licensing. These two stages will be integrated in a case study focused on Dungeness as a representative gravel shoreline. Dungeness is not one of the study sites for ARCoES yet has emerged in the last year as a priority area for National Grid and Magnox Ltd. Consequently, the proposed collaboration addresses a pressing research need amongst a group of partners who are already working in partnership at sites across the UK.

拟议的研究旨在扩展英国其他沿海能源设施已经开展的工作，提供未来洪水风险和对现有沿海能源基础设施影响的基本细节，并开发决策支持工具（开源GIS），以指导业务和战略行动。这对于在整个能源部门建立抵御极端事件（如沿海风暴、高河水流量）和长期气候变化（如海平面上升、波浪气候）的能力至关重要，而不依赖于应急措施或对消费者能源账单产生重大影响。该项目还为推进我们当前的能源战略（新建核电、海上可再生能源、能源基础设施投资、建筑能源安全）做出了重大贡献，提高了沿海低地和低洼河流洪泛区的防洪能力，并减少了我们对沿海防御硬工程解决方案的依赖。研究分为两个阶段。第一个是洪水风险评估，其基础是模拟海平面上升、风暴、波浪漫顶和河流高流量的极端水位。该评估将成为开源GIS的输入，为一系列能源和沿海利益相关者提供用于运营和战略规划的决策支持系统（DSS）。这直接建立在作为西北地区和欣克利角、塞兹韦尔、布拉德韦尔和塞拉菲尔德核场址ARCoES项目（http：//www.liv.ac.uk/geography-and-planning/research/adaptation-and-accurence-of-coastal-energy-supply/）一部分而正在开发的方法的基础上。DSS旨在作为能源行业的决策支持工具，以有计划和及时的方式应对极端事件，并通过分阶段投资战略性地应对未来的气候变化。沿海利益攸关方和社区还将决策支持系统作为一个实用和可利用的工具，用于确定关键临界点的时间和位置，在这些临界点和位置上，需要在现有的海岸线管理计划内重新评估战略性沿海规划备选方案。第二阶段是对“沙地景观”进行范围研究，该研究遵循荷兰正在开发的大规模、自我维持的海滩补给模式，从而为沿海地貌系统提供必要的沉积物库，以积极应对海平面上升和抵御风暴事件。这一创新办法需要进行基础研究和应用研究，以确定可行性，并查明在目标地点的下游或近海可能产生的任何负面后果。在这里，该项目汇集了国家海洋学中心（NOC）对流体动力学和沉积物建模的最先进的理解和应用，以及皇冠地产（TCE）和皇家哈斯康宁-DHV（RHDHV）在“软”海岸防御和战略海岸规划方面的商业、工程和环境专业知识，以建立一种方法，用于建立海岸流体动力学方面的沙景项目参数，沉积物来源和迁移、沿海形态演变、更广泛的环境影响和项目许可证。这两个阶段将整合到以邓杰内斯为代表的砾石海岸线的案例研究中。Dungeness不是ARCoES的研究地点之一，但在去年已经成为国家电网和Magnox有限公司的优先领域。因此，拟议的合作解决了一组合作伙伴之间的迫切研究需求，这些合作伙伴已经在英国各地的合作伙伴关系中工作。