Comparative simulation study of effects of eddy-topography interaction in the East/Japan Sea deep circulation

作     者：CHOI Youngjin 

作者机构：Center for Earth Information Science and Technology Japan Agency for Marine-Earth Science and Technology Geo System Research Corporation 

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

年 卷 期：2015年第34卷第7期

页      面：1-18页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 

基　　金：The Research Program on Climate Change Adaptation(RECCA)of the Ministry of Education Culture Sports Science and Technology(MEXT)of Japan 

主　　题：East/Iapan Sea deep mean current seasonal variability ocean general circulation model eddy- topography interaction 

摘      要：In this study the structure and seasonal variations of deep mean circulation in the East/lapan Sea （E/S） were numerically simulated using a mid-resolution ocean general circulation model with two different parameterizations for the eddy-topography interaction （ETI）. The strong deep mean circulations observed in the EIS are well reproduced when using the ETI parameterizations. The seasonal variability in the EIS deep layer is shown by using ETI parameterization based on the potential vorticity approach, while it is not shown in the statistical dynamical parameterization. The driving mechanism of the strong deep mean currents in the E/S are discussed by investigating the effects of model grids and parameterizations. The deep mean circulation is more closely related to the baroclinic process and potential vorticity than it is to the wind driven circulation.