CAREER: Simulations of Nonlinear Water Waves and Air-to-Sea Momentum Fluxes in the Coastal Ocean

建议编号：CTS-0547056研究人员：秦晨星：南阿拉巴马卡雷大学：沿海地区非线性水波和海气动量通量的模拟这个项目的目标是发展一个沿海工程和科学的综合研究和教育计划，将提高风暴潮和波浪动力学的模拟能力，同时教育学生和普通公众关于海湾地区的沿海问题。根据人口普查数据，超过50%的美国人口居住在海岸线50英里以内，沿海人口持续增长。由于人类活动的增加和气候变化，该国的近海地区面临严重的压力。沿海地区的持续流行和沿海开发的增加使更多的人和财产面临沿海灾害的风险，如飓风和海啸。风、浪和浪是沿海洪水和侵蚀的主要驱动力。减轻这类沿海灾害的影响需要准确预测风暴和飓风产生的水浪和海浪，以便向公众和决策者提供信息，促进沿海资源管理和应急反应，并改进沿海基础设施的工程设计。该计划的研究部分将采用一种创新的跨学科(土木工程、物理海洋学和计算科学)方法，利用PI在计算流体力学方面的先进海岸波浪建模专业知识。五年研究计划包括基于最先进的公式和谱元素方法的第三代Boussinesq型波流模式的理论制定和分析、开发和验证，该模式包括涡度和风力强迫，并将新模式用作研究工具，以增进对风对波-波相互作用的影响以及风暴潮模拟的海-气动量通量的理解。该方案的教育部分将与研究部分相结合，以加强本科教育和研究，并用新的研究生水平课程丰富研究生课程。此外，一个新的社区外展计划将与成熟的阿拉巴马州太子岛海洋实验室的K-12教育计划相结合。以高中生和科学教师为重点的综合教育计划将加强与海洋有关的教育，并吸引美国学生进入海洋科学领域，特别是沿海工程专业。拟议的研究和教育活动将扩大代表不足的北墨西哥湾沿岸居民和少数群体对沿海工程学科的参与。这项多层次的社区推广计划将提高公众对风暴浪和洪水的破坏力及其对沿海居民和基础设施的威胁的了解。这将提高公众对海岸线沿线许多住宅发展的潜在风险的认识，从而促进海岸区的管理。

PROPOSAL NO.: CTS-0547056PRINCIPAL INVESTIGATORS: QIN CHENINSTITUTION: UNIVERSITY OF SOUTH ALABAMACAREER: SIMULATIONS OF NONLINEAR WATER WAVES AND AIR-TO-SEA MOMENTUM FLUXES IN THE COASTAL OCEANThe goal of this project is to develop an integrated research and educational program in coastal engineering and science that will advance the capability of modeling storm surge and wave dynamics, and at the same time educate students and the general public about coastal issues in the Gulf area. According to census data, more than 50% of the U.S. population lives within 50 miles of the shoreline, and the coastal population continues to grow. The nation's near shore regions are severely stressed because of increased human activity and climate change. The continuing popularity of coastal areas and increased development along the coastlines puts more people and property at risk from coastal hazards, such as hurricanes and tsunamis. Winds, surges and waves are the major forcing of coastal flooding and erosion. Mitigating the impacts of such coastal disasters requires an accurate prediction of water surges and ocean waves generated by storms and hurricanes in order to inform the public and decision-makers, facilitate the management of coastal resources and emergency response, and improve engineering design of coastal infrastructure. The research component of this program will employ an innovative, interdisciplinary (civil engineering, physical oceanography and computational science) approach utilizing the PI's advanced coastal wave modeling expertise in computational hydrodynamics. The five-year research plan consists of theoretical formulation and analysis, development and verification of a third-generation Boussinesq-type wave-current model that includes vorticity and wind forcing based on state-of-the-art formulations and spectral-element methods, and the utilization of the new model as a research tool to improve understanding of wind effects on wave-wave interactions as well as air-to-sea momentum fluxes for storm surge modeling. The education component of the program will be coupled with the research component to enhance undergraduate education and research as well as enrich a graduate curriculum with new graduate-level courses. Furthermore, a novel community outreach program will be integrated with the well-established Alabama Dauphin Island Sea Lab's K-12 education programs. The integrated educational program with an emphasis on high-school students and science teachers will enhance ocean-related education and attract U.S. students to the field of ocean science in general and to the profession of coastal engineering in particular. The proposed research and education activities will broaden the participation of the underrepresented Northern Gulf Coast residents and minorities in the discipline of coastal engineering. The multilevel community outreach program will improve the general public's understanding of the destructive forces of storm waves and water surges and their threat to coastal inhabitants and infrastructure. This will raise the public's awareness of the potential risk associated with many residential developments along the coastlines and therefore facilitate coastal zone management.