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DOI | 10.1175/JCLI-D-17-0788.1 |
Relationship between El Nino-Southern Oscillation and the Symmetry of the Hadley Circulation: Role of the Sea Surface Temperature Annual Cycle | |
Guo, Yi-Peng; Tan, Zhe-Min1 | |
2018-06-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:13页码:5319-5332 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | El Nino-Southern Oscillation (ENSO), which features an equatorial quasi-symmetric sea surface temperature anomaly (SSTA), is related to both the symmetric and asymmetric components of the Hadley circulation (HC) variability. However, the mechanisms for such a nonlinear HC-ENSO relationship are still unclear. Using 36-yr monthly reanalysis datasets, this study shows that the month-to-month HC variability is dominated by two principal modes, the asymmetric mode (AM) and symmetric mode (SM), both of which are highly correlated with ENSO variability. Furthermore, the relationship between the HC principal modes and the ENSO SSTA is modulated by the western Pacific SST annual cycle. When the zonal mean western Pacific SST peaks off (on) the equator, the ENSO SSTA leads to the AM (SM) of HC variability. This is because the zonal mean western Pacific SST peak provides a warmer background favorable for the SSTA to stimulate convection, indicating the important role of the combined effect of the SST annual cycle and the ENSO SSTA in affecting the HC variability. Importantly, the western Pacific SST annual cycle has no such modulation effect during central Pacific El Nino or La Nina events. The results have important implications for simulating and predicting the climatic impacts of ENSO and HC variability. |
英文关键词 | El Nino ENSO Hadley circulation Annual variations Anomalies Interannual variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434936100002 |
WOS关键词 | INTERANNUAL VARIABILITY ; EXTRATROPICAL CLIMATE ; MERIDIONAL ASYMMETRY ; COMBINATION-MODE ; ENERGY-TRANSPORT ; WIND ANOMALIES ; TERMINATION ; PACIFIC ; OCEAN ; ENSO |
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/20876 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ, Minist Educ, Key Lab Mesoscale Severe Weather, Nanjing, Jiangsu, Peoples R China; 2.Nanjing Univ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Guo, Yi-Peng,Tan, Zhe-Min. Relationship between El Nino-Southern Oscillation and the Symmetry of the Hadley Circulation: Role of the Sea Surface Temperature Annual Cycle[J]. JOURNAL OF CLIMATE,2018,31(13):5319-5332. |
APA | Guo, Yi-Peng,&Tan, Zhe-Min.(2018).Relationship between El Nino-Southern Oscillation and the Symmetry of the Hadley Circulation: Role of the Sea Surface Temperature Annual Cycle.JOURNAL OF CLIMATE,31(13),5319-5332. |
MLA | Guo, Yi-Peng,et al."Relationship between El Nino-Southern Oscillation and the Symmetry of the Hadley Circulation: Role of the Sea Surface Temperature Annual Cycle".JOURNAL OF CLIMATE 31.13(2018):5319-5332. |
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