Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3550-z |
Dynamical diagnostics of the SST annual cycle in the eastern equatorial Pacific: Part II analysis of CMIP5 simulations | |
Chen, Ying-Ying1,2,3,4; Jin, Fei-Fei3 | |
2017-12-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 49 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | In this study, a simple coupled framework established in Part D dagger is utilized to investigate inter-model diversity in simulating the equatorial Pacific SST annual cycle (SSTAC). It demonstrates that the simulated amplitude and phase characteristics of SSTAC in models are controlled by two internal dynamical factors (the damping rate and phase speed) and two external forcing factors (the strength of the annual and semi-annual harmonic forcing). These four diagnostic factors are further condensed into a dynamical response factor and a forcing factor to derive theoretical solutions of amplitude and phase of SSTAC. The theoretical solutions are in remarkable agreement with observations and CMIP5 simulations. The great diversity in the simulated SSTACs is related to the spreads in these dynamic and forcing factors. Most models tend to simulate a weak SSTAC, due to their weak damping rate and annual harmonic forcing. The latter is due to bias in the meridional asymmetry of the annual mean state of the tropical Pacific, represented by the weak cross-equatorial winds in the cold tongue region. |
英文关键词 | SST annual cycle CMIP5 Westward propagation External forcing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000415579000017 |
WOS关键词 | OCEAN-ATMOSPHERE MODEL ; GENERAL-CIRCULATION MODELS ; TROPICAL PACIFIC ; SEASONAL CYCLE ; COUPLED OCEAN ; EL-NINO ; INTERANNUAL VARIABILITY ; SOUTHERN-OSCILLATION ; COLD-TONGUE ; ITCZ |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35820 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China; 3.Univ Hawaii Manoa, Sch Ocean & Earth Sci & Technol, Dept Atmospher Sci, Honolulu, HI 96822 USA; 4.Nanjing Univ Informat Sci & Technol, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Ying-Ying,Jin, Fei-Fei. Dynamical diagnostics of the SST annual cycle in the eastern equatorial Pacific: Part II analysis of CMIP5 simulations[J]. CLIMATE DYNAMICS,2017,49. |
APA | Chen, Ying-Ying,&Jin, Fei-Fei.(2017).Dynamical diagnostics of the SST annual cycle in the eastern equatorial Pacific: Part II analysis of CMIP5 simulations.CLIMATE DYNAMICS,49. |
MLA | Chen, Ying-Ying,et al."Dynamical diagnostics of the SST annual cycle in the eastern equatorial Pacific: Part II analysis of CMIP5 simulations".CLIMATE DYNAMICS 49(2017). |
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