An assessment of the CMIP5 models in simulating the Argo geostrophic meridional transport in the North Pacifi c Ocean  

作　　者：LI Xiang YUAN Dongliang 

机构地区：[1]Key Laboratory of Ocean Circulation and Waves,Institute of Oceanology,Chinese Academy of Sciences,and Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266071,China [2]Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China [3]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Journal of Oceanology and Limnology》2020年第5期1445-1463,共19页海洋湖沼学报（英文）

基　　金：Supported by the National Natural Foundation of China(Nos.41421005,41720104008,91858204);the National Basic Research Program of China(973 Program)(No.2012CB956001);the Qingdao National Laboratory for Marine Science and Technology(No.2016ASKJ04);the Chinese Academy of Science(No.XDA11010205);the Shandong Provincial Projects(Nos.2014GJJS0101,U1406401)。

摘　　要：Eleven climate system models that participate in the Coupled Model Intercomparison Project phase 5(CMIP5)were evaluated based on an assessment of their simulated meridional transports in comparison with the Sverdrup transports.The analyses show that the simulated North Pacifi c Ocean circulation is essentially in Sverdrup balance in most of the 11 models while the Argo geostrophic meridional transports indicate signifi cant non-Sverdrup gyre circulation in the tropical North Pacifi c Ocean.The climate models overestimated the observed tropical and subtropical volume transports signifi cantly.The non-Sverdrup gyre circulation leads to non-Sverdrup heat and salt transports,the absence of which in the CMIP5 simulations suggests defi ciencies of the CMIP5 model dynamics in simulating the realistic meridional volume,heat,and salt transports of the ocean.

关 键 词：Coupled Model Intercomparison Project phase 5(CMIP5)models Sverdrup balance meridional transport Argo geostrophic currents 

分 类 号：P714[天文地球—海洋科学]