Meso-Scale Eddy Formation and Propagation in the Northern Equatorial Pacific: Interaction with the Extra-Equatorial Waveguide

北赤道太平洋中尺度涡流的形成和传播：与赤道外波导的相互作用

• 批准号: 9415898
• 负责人: Benjamin Giese
• 金额: $ 8万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-12-01 至 1997-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9415898&HistoricalAwards=false
• 关键词: Meso; Scale; Eddy; Formation; Propagation

9415898 Giese This is a numerical study of mesoscale eddies that occasionally (but regularly) develop in the eastern tropical North Pacific, which can be detected in TOPEX altimeter data. Three generation mechanisms for these eddies will be investigated: (1) the intense, primarily wintertime, wind events that blow at near-hurricane strength from the Atlantic to the Pacific through mountain passes; (2) instabilities of the equatorial currents; and, (3) a seasonally modulated instability at the eastern end of the North Equatorial Counter Current. These process-oriented numerical studies will be carried out using two models, the reduced gravity model of Chang and the GFDL Modular Ocean Model (MOM). ***

9415898 Giese 这 中尺度涡旋的数值研究 偶尔（但有规律）在热带北太平洋东部发展，这可以在TOPEX高度计数据中检测到。 这些涡旋的三种生成机制将被研究：（1）强烈的，主要是冬季，风事件，吹在近飓风强度， 通过山口从大西洋到太平洋; (2)赤道流的不稳定性;以及（3） 北赤道逆流东端的季节性调制不稳定。 这些面向过程的数值研究将使用两个模型进行，即Chang的简化重力模型和GFDL模块化海洋模型。 ***