Ocean Circulation Features Forced by Strong Topographically-Induced Wind Stress Curl

PI建议分析高地岛屿或沿海山脉引起的风应力旋度异常对全球海洋环流的影响。为了实现这一目标，将开发一个半解析模型来探索问题的参数空间（岛屿距边界的距离、撞击岛屿的平均流量方向、异常风尾流的方向和强度）并对不同可能的海洋响应进行分类。他们将探索所有感兴趣的地理区域的现有观测结果，以寻找预测的特征，并为所提出的动力学机制的有效性提供坚实的基础。复杂性不断增加的数值模型将有助于解释分析预测与实际观察之间可能存在的差异，并提供对问题更深入的动态理解。 更广泛的影响该项目解决了理解和预测复杂几何环境中大气相互作用的重要问题，并对生态系统和渔业动态产生了影响。它将增进知识，同时促进研究生的培训。研究结果将用于改进本科课程“全球环境数据分析”的材料，该课程由首席研究员在新的本科全球环境科学学位框架内教授。它还将刺激和激励进一步的观察和实地项目，特别是在生态学和渔业方面。结果将是广泛的。

The PI proposes to analyze the impact of the wind stress curl anomalies induced by high-topography islands or coastal mountains on the global ocean circulation. To accomplish this, a semianalytical model will be developed to explore the parameter space of the problem (distance of the island from boundaries, direction of mean flow impinging on the island, direction and intensity of the anomalous wind wake) and classify the different possible oceanic responses. They will explore existing observations for all geographic areas of interest to search for the predicted features and provide solid grounds for the validity of the proposed dynamical mechanisms. A numerical model with increasing complexity will help interpret possible differences between analytical predictions and actual observations, and provide a deeper dynamical understanding of the problem. Broader ImpactsThe project addresses issues seminal to the effort of understanding and predicting atmosphere-interactions in complex geometric settings, and has implications in ecosystem and fisheries dynamics. It will advance knowledge while promoting the training of a graduate student. The results will be used to improve the material of the undergraduate course \Global Environmental Data Analysis", taught by the principal investigator in the framework of the new undergraduate Global Environmental Science degree. It will also stimulate and motivate further observations and field programs, especially in ecology and fisheries. The results will be broadly.