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DOI | 10.1007/s00382-016-3077-8 |
Meridional displacement of the East Asian trough and its response to the ENSO forcing | |
Leung, Marco Y. -T.; Cheung, Hoffman H. N.; Zhou, Wen | |
2017 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 48 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | This paper examined the underlying dynamic mechanisms associated with the meridional displacement of the East Asian trough (EAT), which is closely related to the temperature variability in the southern part of East Asian winter monsoon (EAWM). During the southward displacement of the EAT, the Siberian high is stronger and the Aleutian low is displaced southward. This is due mainly to the anomalous cyclonic flow associated with seasonal eddies over the midlatitude central Pacific, which enhances the horizontal advection of cold (warm) air to the southern (northern) part of the EAT in the lower troposphere. The cold (warm) advection narrows (thickens) the height thickness and results in negative (positive) temperature anomalies in the southern (northern) part of the EAT. These anomalous circulation features can be reasonably explained by the phase of the El Nio-Southern Oscillation (ENSO). The results are also verified by the numerical experiments with prescribing ENSO-like heat source anomalies over the tropical eastern and western Pacific in an anomaly atmospheric general circulation model. All of these results advance our understanding for the linkage between the ENSO and the EAWM via its modulation of the EAT. |
英文关键词 | East Asian winter monsoon Thermodynamic equation El Nino-Southern Oscillation Atmospheric circulation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000392307300019 |
WOS关键词 | NINO-SOUTHERN OSCILLATION ; WINTER ARCTIC-OSCILLATION ; WESTERN NORTH PACIFIC ; BOREAL WINTER ; SEA-ICE ; ATMOSPHERIC CIRCULATION ; INTERANNUAL VARIATIONS ; MONSOON SURGES ; VARIABILITY ; IMPACT |
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/36312 |
专题 | 气候变化 |
作者单位 | City Univ Hong Kong, Sch Energy & Environm, Guy Carpenter Asia Pacific Climate Impact Ctr, Kowloon, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Leung, Marco Y. -T.,Cheung, Hoffman H. N.,Zhou, Wen. Meridional displacement of the East Asian trough and its response to the ENSO forcing[J]. CLIMATE DYNAMICS,2017,48. |
APA | Leung, Marco Y. -T.,Cheung, Hoffman H. N.,&Zhou, Wen.(2017).Meridional displacement of the East Asian trough and its response to the ENSO forcing.CLIMATE DYNAMICS,48. |
MLA | Leung, Marco Y. -T.,et al."Meridional displacement of the East Asian trough and its response to the ENSO forcing".CLIMATE DYNAMICS 48(2017). |
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