CLIMA: Climate-Resilient Infrastructure Adaptations for Maladaptive Levee Networks

CLIMA：针对适应不良的堤坝网络的气候适应性基础设施改造

• 批准号: 2332169
• 负责人: Alfonso Mejia
• 金额: $ 75.8万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2332169&HistoricalAwards=false
• 关键词: CLIMA; Climate; Resilient; Infrastructure; Adaptations

Millions of people and trillion dollars of property in the US are protected from flooding by levee systems. However, most federally monitored levees fall short of minimum accreditation standards. Further, climate change exacerbates flooding, likely making current levee protection inadequate in the future. Upgrading and extending existing levees require substantial investments and may not lead to net positive effects for all communities across a given river network. This CiviL Infrastructure research for climate change Mitigation and Adaptation (CLIMA) project aims to address this problem by exploring a theory-guided systems modeling framework for designing climate-resilient levee infrastructure that supports floodplain communities in an equitable way. The project focuses on two interrelated questions: (1) How interactions between a levee network’s performance, future climates, natural infrastructure, and behavioral feedback drive changes in flood risk across communities; and (2) How design adaptations reimagine a levee network that supports equitable, resilient, and sustainable communities. To address them, the project creates a novel systems modeling framework to evaluate levee adaptation strategies, considering factors often overlooked in levee decision-making, such as natural flood infrastructure, variability in levee performance, climate change, unintended consequences of levee construction, and social equity. This framework sees levees as part of a larger adaptive network, where levee decisions made in one community affect others in the same watershed. Through the adaptation lens, the project advances knowledge of the potential of natural flood infrastructure to reduce the need for levees and achieve co-benefits (such as reducing freshwater pollution), the geotechnical factors that drive levee performance at the watershed level, and the interventions and policy options for adapting levees to changing flood conditions. These advancements have the potential to benefit floodplain communities nationwide by facilitating the identification of resilience-building strategies. By utilizing extensive biophysical and social datasets, including new sources like geotechnical field and community surveys, the project creatively couples computational models of natural infrastructure, levee infrastructure, flood inundation risk, and levee decision-making. This integrated approach yields detailed roadmaps of levee adaptations and levee analytics, allowing for better-informed decisions that prioritize equity, resilience, and cost-effectiveness.This project is supported by the Humans, Disasters, and the Built Environment (HDBE) Program and the Civil Infrastructure Systems (CIS) Program of the Division of Civil, Mechanical and Manufacturing Innovation (CMMI) of the Directorate for Engineering (ENG).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在美国，数百万人和数万亿美元的财产受到堤坝系统的保护。然而，大多数联邦政府监督的堤坝达不到最低认证标准。此外，气候变化加剧了洪水泛滥，可能使目前的堤坝保护在未来不足。升级和扩建现有堤坝需要大量投资，可能不会对特定河流网络的所有社区产生净积极影响。这个CiviL气候变化减缓和适应基础设施研究（CLIMA）项目旨在通过探索一个理论指导的系统建模框架来解决这个问题，该框架用于设计以公平的方式支持洪泛区社区的气候弹性堤坝基础设施。该项目侧重于两个相互关联的问题：（1）堤坝网络的性能，未来气候，自然基础设施和行为反馈之间的相互作用如何推动社区洪水风险的变化;以及（2）设计适应如何重新构想堤坝网络，支持公平，弹性和可持续的社区。为了解决这些问题，该项目创建了一个新的系统建模框架，以评估堤坝适应策略，考虑堤坝决策中经常被忽视的因素，如自然洪水基础设施，堤坝性能的变化，气候变化，堤坝建设的意外后果和社会公平。该框架将堤坝视为一个更大的适应性网络的一部分，其中一个社区的堤坝决策会影响同一流域的其他社区。通过适应透镜，该项目提高了对自然洪水基础设施潜力的认识，以减少对堤坝的需求并实现共同效益（如减少淡水污染），推动流域层面堤坝性能的岩土工程因素，以及使堤坝适应不断变化的洪水条件的干预措施和政策选择。这些进展有可能通过促进确定建立秩序的战略，使全国洪泛区社区受益。通过利用广泛的生物物理和社会数据集，包括新的来源，如岩土工程领域和社区调查，该项目创造性地耦合自然基础设施，堤坝基础设施，洪水淹没风险和堤坝决策的计算模型。这种综合方法产生了详细的堤坝适应和堤坝分析路线图，允许更明智的决策，优先考虑公平，弹性和成本效益。该项目得到了人类，灾害和建筑环境（HDBE）计划和民用基础设施系统（CIS）计划的支持。工程理事会（ENG）的机械和制造创新（CMMI）。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。