首页|A Hybrid Coupled Ocean-Atmosphere Model and Its Simulation of ENSO and Atmospheric Responses

A Hybrid Coupled Ocean-Atmosphere Model and Its Simulation of ENSO and Atmospheric Responses

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A new hybrid coupled model (HCM) is presented in this study,which consists of an intermediate tropical Pacific Ocean model and a global atmospheric general circulation model.The ocean component is the intermediate ocean model (IOM) of the intermediate coupled model (ICM) used at the Institute of Oceanology,Chinese Academy of Sciences (IOCAS).The atmospheric component is ECHAM5,the fifth version of the Max Planck Institute for Meteorology atmospheric general circulation model.The HCM integrates its atmospheric and oceanic components by using an anomaly coupling strategy.A 100-year simulation has been made with the HCM and its simulation skills are evaluated,including the interannual variabil ity of SST over the tropical Pacific and the ENSO-related responses of the global atmosphere.The model shows irregular occurrence of ENSO events with a spectral range between two and five years.The amplitude and lifetime of ENSO events and the annual phase-locking of SST anomalies are also reproduced realistically.Despite the slightly stronger variance of SST anomalies over the central Pacific than observed in the HCM,the patterns of atmospheric anomalies related to ENSO,such as sea level pressure,temperature and precipitation,are in broad agreement with observations.Therefore,this model can not only simulate the ENSO variability,but also reproduce the global atmospheric variability associated with ENSO,thereby providing a useful modeling tool for ENSO studies.Further model applications of ENSO modulations by ocean-atmosphere processes,and of ENSO-related climate prediction,are also discussed.

IOCAS ICMhybrid coupled modelENSO simulationatmospheric response

Junya HU、Rong-Hua ZHANG、Chuan GAO

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Chinese Academy of Sciences Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China

Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China

Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China

University of Chinese Academy of Sciences, Beijing 10029, China

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This research was supported by the National Natural Science Foundation of ChinaThis research was supported by the National Natural Science Foundation of ChinaNational Programme on Global Change and Air-Sea InteractionNFSCNFSCNFSCStrategic Priority Research Program of the Chinese Academy of SciencesNSFC-Shandong Joint Fund for Marine Science Research Centers

NFSC41706016GASI-IPOVAI-0641690122416901204160601941421005XDA19060102U1406402

2019

大气科学进展(英文版)
中国科学院大气物理研究所

大气科学进展(英文版)

CSTPCDCSCDSCI
影响因子：0.741
ISSN：0256-1530
年,卷(期)：2019.36(6)
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