DECADAL VARIABILITY OF SUBSURFACE OCEAN TEMPERATURE ANOMALY IN TROPICAL PACIFIC AND ITS IMPACT ON CLIMATE OF CHINA
文献类型：CNKI期刊论文
| 作者 | Chen YL(陈永利); Zhao YP(赵永平); Wang F(王凡) ; Feng JQ(冯俊乔)
|
| 发表日期 | 2013-07-26 |
| 出处 | Journal of Tropical Meteorology
 |
| 关键词 | tropical Pacific Ocean SOTA ENSO-like variability decadal variability climate of China |
| 英文摘要 | In this study,we investigate the decadal variability of subsurface ocean temperature anomaly(SOTA)in the tropical Pacific and associated anomalous atmospheric circulation over Asia-North Pacific-North America by analyzing 50 years of atmosphere-ocean data from the National Center for Environmental Prediction(NCEP)reanalysis project and Simple Ocean Data Assimilation(SODA).Relationship between the ENSO-Like variability and climate of China is also revealed.The results show that the decadal variability of tropical Pacific SOTA has two dominant ENSO-like modes:the primary mode is an ENSO-Like mature phase pattern,and the second mode is associated with the ENSO-like transition(developing or decaying)phase.These two modes consist of a cycle of ENSO-Like variability,which exhibits a quasi-40a fluctuation,superimposed with an oscillation of a 13a period.The ENSO-Like variability in the tropical Pacific influences the atmosphere system at the mid-and higher-latitudes and subtropical regions,resulting in decadal variability of south wind over North China,the East Asian monsoon and climate of China.During the mature phase of El Ni o-Like variability,the anomalous north wind prevails over the north part of China and the East Asian monsoon weakens,with little rain in North China but much rain in the middle-and lower-reaches of the Yangtze River.With El Ni o-Like decaying(La Ni a-Like developing),anomalous northerly wind also prevails over North China,then the East Asian monsoon weakens with drought occurring in North China.The situation during the La Ni a-Like variability is the opposite.The pattern of anomalous climate of China is primarily dominated by the first ENSO-like variability,while the second mode can modulate the contribution of the first one,depending on whether its phase agrees with that of the first mode.The climate shift in China around 1978 and successive occurrence of drought for more than 20 years in North China are primarily induced by the first two ENSO-like variabilities.The latest La Ni a-Like phase starts from 1998 and will presumably end around 2018.It is expected that more rainfall would be in North China and less rainfall would appear in the middle-and lower-reaches of the Yangtze River valley during this period. |
| DOI标识 | 10.16555/j.1006-8775.2013.03.006 |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Knowledge Innovation Program of Chinese Academy of Sciences(KZCX2-YW-Q11-02) ; National Basic Research Program of China(2012CB417401) ; National Natural Science Key Foundation of China(40890152) |
| 卷 | v.19期:03页:59-69 |
| 语种 | 英文; |
| 分类号 | P732.6 |
| ISSN号 | 1006-8775 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190793]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.InstituteofOceanology,ChineseAcademyofSciences 2.KeyLaboratoryofOceanCirculationandWaves,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Chen YL,Zhao YP,Wang F,et al. DECADAL VARIABILITY OF SUBSURFACE OCEAN TEMPERATURE ANOMALY IN TROPICAL PACIFIC AND ITS IMPACT ON CLIMATE OF CHINA. 2013. |
入库方式： OAI收割
来源：海洋研究所
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