Framing the Problem of Flood Risk and Flood Management in Metropolitan Los Angeles
Framing the Problem of Flood Risk and Flood Management in Metropolitan Los Angeles
复制标题
阐述洛杉矶大都会的洪水风险和洪水管理问题
DOI：
10.1175/wcas-d-22-0013.1
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Brady, David
中科院分区：
文献类型：
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作者：
Ulibarri, Nicola;Valencia-Uribe, Claudia;Sanders, Brett F.;Schubert, Jochen;Matthew, Richard;Forman, Fonna;Allaire, Maura;Brady, David
本文发展了洪水问题框架的概念，以了解决策者在洪水风险管理的优先事项在洛杉矶大都会区在加州（洛杉矶地铁）。问题框架塑造了个人对特定管理策略的偏好及其未来行为。虽然洪水是一个复杂的、多方面的问题，有多种原因和多种影响，但决策者最有可能只管理他们意识到或关注的洪水问题。为了评估洪水决策者对洛杉矶地铁洪水暴露、脆弱性和管理的主要关注，我们利用了防洪区、城市规划者、非营利组织和其他洪水相关决策者的焦点小组。我们确定了许多问题，包括对特定类型洪水的关注（例如，河流与洪积）以及对各种基础设施和社区的影响。我们的分析表明，洪水问题可分为三个问题框架：一个涉及气候变化加剧的大型河流洪水及其对住房、经济和基础设施的影响;一个涉及洪水滋扰、污染和社区历史投资不足;一个涉及沿海和河流洪水对生态系统的影响。虽然每个人通常阐述的问题，重叠只有一个问题框架，每个问题框架讨论了许多组织类型，这表明在洪水规划和响应跨组织协调的低障碍。本文还提出了我们的理解，在一个地区，不面临频繁的大floods.Significance StatementThis本文调查的主要问题，规划者，洪水管理者，和其他决策者对洪水在南加州的认识。这一点很重要，因为决策者对洪水的理解方式决定了他们对洪水事件的计划和应对方式。我们发现，一些决策者主要关心的是影响大片基础设施和住房的大洪水;另一些人关心的是在低收入地区造成污染的频繁小洪水;还有一些人关心的是在海平面上升期间保护沿海生态系统。我们的研究结果还强调了研究和实践的关键优先事项，包括需要灵活和可访问的洪水数据和如何疏散的教育。
This paper develops the concept of flood problem framing to understand decision-makers’ priorities in flood risk management in the Los Angeles Metropolitan Region in California (LA Metro). Problem frames shape an individual’s preferences for particular management strategies and their future behaviors. While flooding is a complex, multifaceted problem, with multiple causes and multiple impacts, a decision-maker is most likely to manage only those dimensions of flooding about which they are aware or concerned. To evaluate flood decision-makers’ primary concerns related to flood exposure, vulnerability, and management in the LA Metro, we draw on focus groups with flood control districts, city planners, nonprofit organizations, and other flood-related decision-makers. We identify numerous concerns, including concerns about specific types of floods (e.g., fluvial vs pluvial) and impacts to diverse infrastructure and communities. Our analyses demonstrate that flood concerns aggregate into three problem frames: one concerned with large fluvial floods exacerbated by climate change and their housing, economic, and infrastructure impacts; one concerned with pluvial nuisance flooding, pollution, and historic underinvestment in communities; and one concerned with coastal and fluvial flooding’s ecosystem impacts. While each individual typically articulated concerns that overlapped with only one problem frame, each problem frame was discussed by numerous organization types, suggesting low barriers to cross-organizational coordination in flood planning and response. This paper also advances our understanding of flood risk perception in a region that does not face frequent large floods.Significance StatementThis paper investigates the primary concerns that planners, flood managers, and other decision-makers have about flooding in Southern California. This is important because the way that decision-makers understand flooding shapes the way that they will plan for and respond to flood events. We find that some decision-makers are primarily concerned with large floods affecting large swaths of infrastructure and housing; others are concerned with frequent, small floods that mobilize pollution in low-income areas; and others are concerned with protecting coastal ecosystems during sea level rise. Our results also highlight key priorities for research and practice, including the need for flexible and accessible flood data and education about how to evacuate.