NONLINEAR DYNAMICAL ANALYSIS OF BIFURCATION AND CONFLUENCE OF THE PACIFIC WESTERN BOUNDARY CURRENTS  

作　　者：NI Guo-xi JIANG Song JU Qiang-chang KONG Ling-hai 

机构地区：[1]LCP Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

出　　处：《Journal of Hydrodynamics》2012年第3期383-390,共8页水动力学研究与进展B辑（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.40890154,10971016,91130020)

摘　　要：In this paper, we analyze the bifurcation and the confluence of the Pacific western boundary currents by an analytical approach. Applying the conservation law, the geostrophic balance relation and the Bernoulli integral to a reduced gravity model, we get a quantitative relation for the outflow and the inflow, and establish the related formulae for the width and the veering angle of offshore currents under the inflow condition. Furthermore, a comparison between the volume transport based on the observation data and the analytical value for the Pacific western boundary currents is presented, which validates the theoretical analysis.In this paper, we analyze the bifurcation and the confluence of the Pacific western boundary currents by an analytical approach. Applying the conservation law, the geostrophic balance relation and the Bernoulli integral to a reduced gravity model, we get a quantitative relation for the outflow and the inflow, and establish the related formulae for the width and the veering angle of offshore currents under the inflow condition. Furthermore, a comparison between the volume transport based on the observation data and the analytical value for the Pacific western boundary currents is presented, which validates the theoretical analysis.

关 键 词：Pacific western boundary currents BIFURCATION CONFLUENCE volume transport reduced gravity model 

分 类 号：P731.2[天文地球—海洋科学] TU311.3[建筑科学—结构工程]