Instabilities of Unsteady/Non-Parallel Ocean Flows

不稳定/非平行洋流的不稳定性

• 批准号: 0137023
• 负责人: Glenn Flierl
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-03-15 至 2006-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0137023&HistoricalAwards=false
• 关键词: Instabilities; Unsteady; Non; Parallel; Ocean

Proposal Number: 0137023Flierl / MITThe proposed work will examine the interactions of jets and eddies with coastlines and shelves using idealized models based on contour dynamics. The approximate model of Flierl (1999) will be extended to include tilted and curved coasts and asymmetric jets in order to determine the ways in which ocean currents meander and form eddies as they leave the coast and go into the deep ocean. Additional studies of the interaction of rings with shelves will be done with a coupled barotropic 11/2 layer model that is extended to include the beta effect. The baroclinic model will be used to study the conditions that influence eddy detachment from a coast. In cases where steady solutions are found, the linearized contour dynamics model will be used to examine the stability of these flows.

建议编号：0137023Flierl/MIT建议的工作将使用基于等高线动力学的理想化模型来研究喷流和涡旋与海岸线和大陆架的相互作用。Flierl(1999)的近似模型将扩展到包括倾斜和弯曲的海岸和不对称喷流，以确定洋流离开海岸进入深海时蜿蜒和形成漩涡的方式。对环与架相互作用的更多研究将使用耦合正压11/2层模型进行，该模型被扩展到包括贝塔效应。斜压模式将被用来研究影响涡旋脱离海岸的条件。在找到稳定解的情况下，将使用线性化的等高线动力学模型来检查这些流动的稳定性。