Excellence in Research: Effect of Hurricane Structure, Track, and Landfall Features on Storm Surges

这项研究将调查如何以及为什么飓风的结构，路径，前进速度和登陆功能控制风暴潮的产生和传播在沿海设置。将使用最近的两次飓风（哈维和厄玛）作为测试案例，使用耦合环流（先进循环，ADCIRC）和波浪（模拟波浪近岸，SWAN）模型进行浪涌水平模拟。 模拟将包括使用观测和分析风模型的强迫，并将执行和分析具有不同飓风大小，强度，轨迹，前进速度，接近角度和测深特征的多次运行。该项目活动将涉及HBCU研究生和本科生，并将协助教育能够应对飓风风暴潮等多学科环境挑战的全面研究人员和工程师。这将通过研究、培训和多学科课程提供边干边学的经验来实现，同时应对真实的全球性和社会相关的挑战。合格的少数民族，妇女和退伍军人学生将被招募为该项目，这将为他们提供一个独特的学习机会，在一个急需的领域。此外，该项目将促进留住人才，吸引有能力的本科生攻读研究生学位。将开展夏季活动，以吸引有才华的高中生接受工程教育。调查结果预计将为当前飓风风暴潮的理解提供信息，并支持多学科工程教育和研究。使用耦合环流（ADCIRC）和波浪（SWAN）模型的浪涌水平模拟将使用最近的两个飓风（哈维和伊尔玛）作为测试案例进行。将使用基于观测的风产品的热带风暴风速进行不同的运行，这些风产品使用不同的阻力系数公式纳入模型。结果将与相应飓风的风暴潮观测结果进行比较，并与其他强迫参数（如飓风大小、强度、路径和水深测量）的操纵结果进行比较，以揭示模型对这些参数的敏感性。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。

This study will investigate how and why hurricane structures, tracks, forward speed, and landfall features control the generation and propagation of storm surges in a coastal setting. Surge level simulations using coupled circulation (ADvanced CIRCulation, ADCIRC) and wave (SimulatingWAves Nearshore, SWAN) models will be carried out using two recent hurricanes (Harvey and Irma) as test cases. The simulations will include forcing using observed and analytical wind models, and multiple runs with varying hurricane sizes, intensities, tracks, forward speed, angle of approach, and bathymetry features will be performed and analyzed. The project activities will involve HBCU graduate and undergraduate students and will assist in the education of well-rounded researchers and engineers capable of addressing multidisciplinary environmental challenges, such as hurricane storm surges. This will be achieved by providing learning-by-doing experiences through research, training, and multidisciplinary courses while addressing a real, global, and societally relevant challenge. Qualified minority, women, and veteran students will be recruited for the project which will provide them with a unique learning opportunity in a critically needed field. In addition, the project will promote retention and entice capable undergraduate students to pursue graduate degrees. Summer activities will be carried out to attract talented high school students to engineering education.The investigation results are expected to inform current hurricane storm surge understanding and support multidisciplinary engineering education and research. Surge level simulations using coupled circulation (ADCIRC) and wave (SWAN) models will be carried out using two recent hurricanes (Harvey and Irma) as test cases. Different runs will be performed using tropical storm wind speeds based on observation-based wind products incorporated into the model using different drag coefficient formulations. The results will be compared against storm surge observations from the respective hurricanes and from additional manipulations of forcing parameters such hurricane size, intensity, track, and bathymetry will be used to reveal the sensitivity of the model to these parameters.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.