A three-dimensional ocean general circulation model for mesoscale eddies——Ⅱ Diagnostic analysis

作     者：Moto Ikeda 

作者机构：Graduate School of Environmental Earth Science Hokkaido University Sapporo Japan 060. 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：1997年第16卷第1期

页      面：29-43页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

主　　题：Diagnostic analysis A three-dimensional ocean general circulation model for mesoscale eddies 

摘      要：A three-dimensional density field associated with mesoscaie unstable waves generated by the 3-D, primitive-equation model (Wang and Ikeda, 1996) is provided to the quasi-geostrophic pressure tendency and ω-equations, and to the (ageostrophic) Q-vector equation. Diagnostic analyses, analogous to the approaches in meteorology: ω-equation and Q-vector method, are for the first time developed to examine the mesoscaie dynamical processes and mechanisms of the unstable waves propagating in the mid-latitude ocean. The weaknesses and strengths of these two diagnostic approaches are evaluated and compared to the model results. The Q-vector method is then recommended to diagnose the vertical motion associated with the mesoscaie dynamics from a hydrographic CTD (conductivity-temperature-depth) array, while the quasi-geostrophic equations produce some small-scale features (errors) in the diagnosed fields.