IOCAS-IR  > 海洋环流与波动重点实验室
Climate variability and predictability associated with the Indo-Pacific Oceanic Channel Dynamics in the CCSM4 Coupled System Model
Yuan Dongliang1,2; Xu Peng1,3; Xu Tengfei4
2017
发表期刊CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
卷号35期号:1页码:23-38
文章类型Article
摘要An experiment using the Community Climate System Model (CCSM4), a participant of the Coupled Model Intercomparison Project phase-5 (CMIP5), is analyzed to assess the skills of this model in simulating and predicting the climate variabilities associated with the oceanic channel dynamics across the Indo-Pacific Oceans. The results of these analyses suggest that the model is able to reproduce the observed lag correlation between the oceanic anomalies in the southeastern tropical Indian Ocean and those in the cold tongue in the eastern equatorial Pacific Ocean at a time lag of 1 year. This success may be largely attributed to the successful simulation of the interannual variations of the Indonesian Throughflow, which carries the anomalies of the Indian Ocean Dipole (IOD) into the western equatorial Pacific Ocean to produce subsurface temperature anomalies, which in turn propagate to the eastern equatorial Pacific to generate ENSO. This connection is termed the "oceanic channel dynamics" and is shown to be consistent with the observational analyses. However, the model simulates a weaker connection between the IOD and the interannual variability of the Indonesian Throughflow transport than found in the observations. In addition, the model overestimates the westerly wind anomalies in the western-central equatorial Pacific in the year following the IOD, which forces unrealistic upwelling Rossby waves in the western equatorial Pacific and downwelling Kelvin waves in the east. This assessment suggests that the CCSM4 coupled climate system has underestimated the oceanic channel dynamics and overestimated the atmospheric bridge processes.
关键词Indian Ocean Dipole El Nino-southern Oscillations (Enso) Oceanic Channel Community Climate System Model (Ccsm4) Indonesian Throughflow Enso Predictability
DOI10.1007/s00343-016-5178-y
收录类别SCI
语种英语
WOS记录号WOS:000390003700002
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136237
专题海洋环流与波动重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves KLOCAW, Qingdao 266071, Peoples R China
2.Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266003, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China
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Yuan Dongliang,Xu Peng,Xu Tengfei. Climate variability and predictability associated with the Indo-Pacific Oceanic Channel Dynamics in the CCSM4 Coupled System Model[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2017,35(1):23-38.
APA Yuan Dongliang,Xu Peng,&Xu Tengfei.(2017).Climate variability and predictability associated with the Indo-Pacific Oceanic Channel Dynamics in the CCSM4 Coupled System Model.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,35(1),23-38.
MLA Yuan Dongliang,et al."Climate variability and predictability associated with the Indo-Pacific Oceanic Channel Dynamics in the CCSM4 Coupled System Model".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 35.1(2017):23-38.
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