Investigating Multi-Scale Dynamical Processes Amplifying Storm Surges

研究放大​​风暴潮的多尺度动力学过程

• 批准号: 2342516
• 负责人: Jiayan Yang
• 金额: $ 42.93万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-03-01 至 2027-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2342516&HistoricalAwards=false
• 关键词: Investigating; Multi; Scale; Dynamical; Processes

This study aims to investigate the reasons for increased coastal flooding in the US, as related to high tide and storm surge. It will determine year-to-year variability of coastal flooding events and try to identify its causes. The study will also propose regions of most vulnerability to flooding from storms and high tides. To achieve these aims, the study will carry out three tasks: 1) analyze data that are publicly available; 2) execute simplified mathematical models of the ocean dynamics to try to isolate the main driving mechanisms of flooding events; and 3) analyze results from a global ocean community model (GLORYS12v1) that is frequently updated with global-scale data. Results from this study should help in the assessment of risk to coastal flooding along the US. Such results will be disseminated in an understandable format to wider audiences. Furthermore, the study will provide research opportunities to undergraduate students. The latter two activities will be achieved via outreach initiatives at the Woods Hole Oceanographic Institution.This study will explore various factors that generate and amplify coastal flooding related to high tides and storm surge in the US. It will investigate responses to atmospheric systems that traverse an entire ocean basin and that are modified by bathymetry. In addition, the study will propose regions that could be most vulnerable to flooding, determine the effect of seasonal and interannual variations in atmospheric and ocean forcing on storm surge severity, and identify processes that have contributed to increased flooding events along US coasts. These aims will be achieved through a) analysis of tide gauge and satellite observations; b) reanalysis of the 1/12degree GLORYS products; and c) analysis of process-oriented ocean model experiments using a 1/16degree, 2-layer ocean model driven by surface wind stress and atmospheric pressure. As Broader Impacts, the improved understanding of the interplay among factors that cause coastal flooding should allow effective risk management and disaster response to mitigate its impacts. Findings would be disseminated to a wider audience through the Woods Hole Science and Technology Education Partnership. Additionally, the project will furnish research opportunities for undergraduates through the Summer Student Fellowship Program of the Woods Hole Oceanographic Institute.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.

这项研究旨在调查美国沿海洪水增加的原因，与涨潮和风暴激增有关。它将确定沿海洪水事件的年度变异性，并试图确定其原因。该研究还将提出最脆弱的区域，从风暴和潮汐中洪水泛滥。为了实现这些目标，该研究将执行三个任务：1）分析公开可用的数据； 2）执行海洋动力学的简化数学模型，以试图隔离洪水事件的主要驾驶机制； 3）分析来自全球海洋社区模型（Glorys12v1）的结果，该模型经常通过全球规模的数据进行更新。这项研究的结果应有助于评估美国沿海洪水的风险。此类结果将以可理解的格式传播给更广泛的受众。此外，该研究将为本科生提供研究机会。后两项活动将通过伍兹霍尔海洋学机构的宣传计划实现。这项研究将探索各种因素，这些因素引起并扩大与美国高潮和风暴潮相关的沿海洪水。它将研究对整个海洋盆地的大气系统的反应，并通过测深量法改变。此外，该研究将提出可能最容易遭受洪水的地区，确定大气和海洋强迫对风暴潮严重程度的季节性和年际变化的影响，并确定有助于增加美国沿海洪水事件的过程。这些目标将通过a）分析潮汐量表和卫星观察结果来实现； b）重新分析1/12Degree Glorys产品； c）使用1/16度的2层海洋模型分析面向过程的海洋模型实验，该模型由表面风应力和大气压驱动。随着更广泛的影响，对导致沿海洪水的因素之间相互作用的相互作用的改善应允许有效的风险管理和灾难反应减轻其影响。通过Woods Hole Science和Technology Education伙伴关系，发现结果将被传播给更广泛的受众。此外，该项目将通过伍兹孔海洋学研究所的夏季学生奖学金计划为大学生提供研究机会。该奖项反映了NSF的法定任务，并被认为是通过基金会的知识分子和更广泛影响的评估审查标准来通过评估来获得支持的。