全球海气耦合模式系统(NIM/COAMS)Ⅰ.一种新的再分析同步耦合方案  

A Air-Sea Global Coupled Model System(NIM/COAMS)Ⅰ.A New Flux Reanalysis Coupling Scheme

作　　者：闵锦忠[1] 孙照渤[1] 曾刚[1] 高庆九[1] 

机构地区：[1]南京信息工程大学江苏省气象灾害重点实验室,江苏南京210044

出　　处：《南京气象学院学报》2005年第5期601-608,共8页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金重点资助项目(40331010);江苏省高校重大基础研究项目(05KJA17002)

摘　　要：利用NCAR CCM2十八层全球大气环流谱模式和IAP/LASG OGCM二十层全球大洋环流模式,设计了一个通量场再分析同步耦合方案FRAC(Flux Re-AnalysisCoupling scheme),建立了全球海气耦合模式系统(NIM/COAMS)。利用EOF理论消除分量模式通量在海气非线性相互作用过程中产生的高频振荡,保留模式通量场的主要成分,使模式误差不致被迅速放大。模拟结果表明,积分前10 a全球平均海表温度仅上升0.1℃,全球平均表面温度仅上升0.3℃,以后基本保持不变,模式没有出现明显的气候漂移,50 a积分显示,模式对气候态的模拟与观测基本一致,部分结果优于未耦合模式。Based on the NCAR CCM2 and IAP/LASG OGCM,a new air-sea coupling scheme called as the “flux reanalysis coupling scheme （FRAC）” is designed by using the EOF theory, and a coupled Ocean-Atmosphere Model System （NIM/COAMS） is established. This scheme can filter the high frequency parts of component model fluxes caused by non-linear air-sea interaction, and maintain the principle parts of model flux fileds, thus preventing the rapid amplification of model errors. Simulated results show that the coupled model is able to control effectively climatic drift for steady long-term integration in such a way that in the first model decade the global mean SST rises only by 0. 1℃ and the global mean surface temperature only by 0.3 ℃. And the 50-year integrated results show that the simulated climate basically accords with the observed, and some results are better than those simulated by the uncoupled models.

关 键 词：海气耦合模式 耦合方案 气候漂移 

分 类 号：P732.6[天文地球—海洋科学]