Dynamics of Equatorial, Coastal and Subtropical Ocean Circulations

赤道、沿海和副热带海洋环流动力学

• 批准号: 9203916
• 负责人: Julian McCreary
• 金额: $ 80.5万
• 依托单位: Nova Southeastern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9203916&HistoricalAwards=false
• 关键词: Dynamics; Equatorial; Coastal; Subtropical; Ocean

This research entails a hierarchy of numerical modeling studies designed to investigate fundamental dynamics of the upper ocean circulation in 3 regimes: the equatorial, coastal and subtropical oceans. The primary model to be used in this research is a nonlinear, 2 1/2-layer dynamic/thermodynamic ocean model which allows exchange of water between the 2 active layers. The study tasks are either continuations, or natural extensions, of work currently being funded by NSF (8817026 and 8912015). There are two unifying themes for much of the research: (1) understanding the dynamics of a new type of frontal instability, and (2) exploring the sensitivity of solutions to the parameterization of entrainment and detrainment physics. %%% The study contains research components that are directly applicable to all oceans, and research components that are more applicable to specific oceans. The research components directly applicable to all oceans are: (1) the investigation of the variability associated with equatorial currents, coastal currents and small-scale oceanic fronts, and (2) the study of interactions between the equatorial, coastal and subtropical ocean circulations. The research components more applicable to specific oceans are: (1) the study of the driving mechanisms of various flow patterns in the Indian Ocean, particularly in the Bay of Bengal, along the coasts of India, and near the equator, (2) the study of the New Guinea Coastal Undercurrent in the Pacific Ocean.

这项研究需要一个层次的数值模拟 旨在研究上层建筑基本动力学的研究 海洋环流在3个制度：赤道，沿海和 亚热带海洋 在此中使用的主要模型 研究是一个非线性的，2 1/2层动力学/热力学海洋 该模型允许两个活性层之间的水交换。 学习任务是学习的延续或自然延伸， 目前由NSF资助的工作（8817026和8912015）。 那里 在许多研究中有两个统一的主题：（1）理解 一种新型锋面不稳定的动力学;（2） 探索解决方案对参数化的敏感性， 夹带和分离物理学。 %%% 该研究包含直接与 适用于所有的海洋，研究的组成部分， 适用于特定的海洋。 研究人员直接 适用于所有海洋的是：（1）调查 与赤道流、沿岸流、 和小尺度海洋锋，以及（2）相互作用的研究 赤道、沿海和亚热带海洋环流之间的联系。 更适用于具体海洋的研究内容是： (1)不同流型的驱动机理研究 印度洋，特别是孟加拉湾，沿着 印度海岸，靠近赤道，（2）新的研究 几内亚海岸暗流在太平洋。