CMG: Collaborative Research: Adaptive Numerical Methods for Shallow Water Circulation with Applications to Hurricane Storm Surge Modeling

CMG：合作研究：浅水循环自适应数值方法及其在飓风风暴潮建模中的应用

• 批准号: 0620696
• 负责人: Joannes Westerink
• 金额: $ 20.77万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0620696&HistoricalAwards=false
• 关键词: CMG; Collaborative; Research; Adaptive; Numerical; CMG; Collaborative; Research; Adaptive; Numerical

The objectives of this project are to improve the accuracy and robustness of storm-surge simulation through improved mathematical modeling, the development of dynamically adaptive numerical algorithms capable of resolving energetic flow features on different scales, increased computational resolution and improved physical description of coastal regions, and through efficient use of parallel computation. The project is inherently interdisciplinary, involving aspects of mathematical modeling, numerical analysis, computational science, coastal engineering, geomorphology, and marine science. The research team will develop improved physical models of storm surges including coupling of circulation, sediment and contaminant transport, and wave models defined on highly resolved computational domains. Adaptive computational methods for solving these models numerically will be formulated and analyzed. The results of this investigation will include an efficient simulator based on these improved physical models and adaptive algorithms, designed for large-scale parallel computation. The simulator will be verified numerically and validated on relevant benchmarks based on laboratory and field data. The synthesis of these ideas will lead to a fully operational hurricane storm-surge model for the Gulf Coast and eastern seaboard of the U.S., capable of predicting storm surges as storms approach landfall and studying the aftermath of storms.As recent events such as Hurricanes Katrina, Rita, and Wilma have demonstrated, the ability to predict and study the effects of hurricane storm surges is a problem of critical national interest. Hurricane Katrina alone is the costliest and fifth-deadliest hurricane in U.S. history; yet with better forecasting, design, and preparation, much of the devastation and loss of life caused by this storm could have been avoided. Hurricane storm-surge models can be used to predict flooding as storms approach landfall for the purposes of emergency management, and can be used in the design and implementation of improved protection systems, including levees, wetlands, seawalls, and flood gates. Computer models of storm surges have been developed; however, only within the past few years has the computational power and resolution been available to begin to model these events with any reasonable degree of certainty. In this project, the investigators will develop mathematical models and state-of-the-art computational algorithms and technologies for simulating storm surges due to hurricanes and other tropical events. The project will involve collaboration among mathematicians, coastal engineers, and marine scientists. The research effort will enhance the training of future scientists and engineers, and the developed methodology will impact other problems in coastal engineering and marine science, including water quality, shipping and ports, marine ecology, naval operations, weather and climate, and wetland degradation.

该项目的目的是通过改进的数学建模，即动态自适应数值算法的发展来提高暴风雨模拟的准确性和鲁棒性，能够在不同尺度上解决能量流量的动态自适应数值算法，提高计算分辨率和改进的沿海区域的物理描述以及有效地使用平行计算。 该项目本质上是跨学科的，涉及数学建模，数值分析，计算科学，沿海工程，地貌和海洋科学的各个方面。 研究团队将开发改进的风暴潮流物理模型，包括循环，沉积物和污染物运输的耦合，以及在高度分辨率的计算域上定义的波浪模型。 用于求解这些模型的自适应计算方法将被制定和分析。 该研究的结果将包括基于这些改进的物理模型和适应性算法的有效模拟器，该算法设计用于大规模平行计算。 模拟器将根据实验室和现场数据进行数值验证并在相关基准上进行验证。 这些思想的合成将导致墨西哥湾沿岸和美国东部沿海地区完全操作的飓风暴风雨模型，能够预测暴风雨随着风暴临近登陆并研究暴风雨的后果。作为最近的事件，例如Katrina，Katrina，Rita和Wilma飓风所证明的危害危机的能力，这是一个问题。 仅卡特里娜飓风是美国历史上最昂贵，最高的飓风。然而，有了更好的预测，设计和准备，这场风暴造成的大部分破坏和生命损失都可以避免。 飓风暴风雨模型可用于预测洪水，因为暴风雨临近登陆以进行紧急管理，并且可用于设计和实施改进的保护系统，包括堤防，湿地，海墙和洪水门。 已经开发了暴风雨的计算机模型；但是，只有在过去的几年中，计算能力和解决方案才能开始以任何合理的确定性来对这些事件进行建模。 在该项目中，研究人员将开发数学模型以及最先进的计算算法和技术，以模拟由于飓风和其他热带事件引起的风暴潮。 该项目将涉及数学家，沿海工程师和海洋科学家之间的合作。 研究工作将增强对未来科学家和工程师的培训，而开发的方法将影响沿海工程和海洋科学的其他问题，包括水质，运输和港口，海洋生态，海军运营，天气和气候以及湿地退化。