A quasi-global 1/10° eddy-resolving ocean general circulation model and its preliminary results  

作　　者：YU YongQiang LIU HaiLong LIN PengFei 

机构地区：[1]State Key Laboratory of Atmospheric Sciences and Geophysical Fluid Dynamics,Institute o/'Atmospheric Physics Chinese Academy of Sciences,Beijing 100029,China

出　　处：《Chinese Science Bulletin》2012年第30期3908-3916,共9页

基　　金：supported by the National Basic Research Program of China (2010CB950502);the Strategic Priority Research Program -Climate Change:Carbon Budget and Related Issues of the Chinese Academy of Sciences (XDA05110302);the National High-tech R&D Program of China (2010AA012304);China National Science Foundation Committee (40975065 and 41023002)

摘　　要：In this study,a quasi-global(excluding the Arctic Ocean) eddy-resolving ocean general circulation model(OGCM) is established based on the latest version of the LASG/IAP Climate system Ocean Model(LICOM2.0).The horizontal resolution and vertical resolution are increased to 1/10° and 55 layers,respectively.Forced by the surface fluxes from the reanalysis and observed data,the model has been integrated for approximately 20 model years(20 a).During the last 8 a,the model is driven by daily mean wind stresses from QuikSCAT and heat fluxes from reanalysis data from 2000 to 2007.The basic performance of the OGCM is analyzed using the last 8 a simulation output.Compared with the simulation of the coarse-resolution OGCM,the eddy-resolving OGCM not only better simulates the spatial-temporal features of mesoscale eddies and the paths and positions of western boundary currents but also reproduces the large meander of the Kuroshio Current and its interannual variability.Another aspect,namely,the complex structures of equatorial Pacific currents and currents in the coastal ocean of China,are better captured due to the increased horizontal and vertical resolution.In this study, a quasi-global （excluding the Arctic Ocean） eddy-resolving ocean general circulation model （OGCM） is established based on the latest version of the LASG/IAP Climate system Ocean Model （LICOM2.0）. The horizontal resolution and vertical resolution are increased to 1/10° and 55 layers, respectively. Forced by the surface fluxes from the reanalysis and observed data, the model has been integrated for approximately 20 model years （20 a）. During the last 8 a, the model is driven by daily mean wind stresses from QuikSCAT and heat fluxes from reanalysis data from 2000 to 2007. The basic performance of the OGCM is analyzed using the last 8 a simulation output. Compared with the simulation of the coarse-resolution OGCM, the eddy-resolving OGCM not only better simulates the spatial-temporal features of mesoscale eddies and the paths and positions of western bound- ary currents but also reproduces the large meander of the Kuroshio Current and its interannual variability. Another aspect, namely, the complex structures of equatorial Pacific currents and currents in the coastal ocean of China, are better captured due to the in- creased horizontal and vertical resolution.

关 键 词：海洋环流模式 涡流 大洋环流模式 垂直分辨率 环流模型 模拟输出 水平分辨率 再分析资料 

分 类 号：P731.2[天文地球—海洋科学]