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DOI | 10.1175/JCLI-D-18-0657.1 |
Interannual Relationship between the Boreal Spring Arctic Oscillation and the Northern Hemisphere Hadley Circulation Extent | |
Hu, Dingzhu1; Guo, Yi-Peng2,3; Tan, Zhe-Min2,3; Guan, Zhaoyong1 | |
2019-07-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:14页码:4395-4408 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | This study investigates the interannual relationship and the dynamical linkage between the boreal spring Arctic Oscillation (AO) and the Northern Hemisphere Hadley circulation extent (HCE). The spring AO is positively correlated with the HCE, with one standard positive deviation of the AO index corresponding to approximately 0.42 degrees latitude poleward shift of the HCE. The interaction between the planetary wave and the zonal winds over the subtropics results in an anomalous eddy momentum flux divergence, which shifts the HCE poleward. The AO related transient eddy momentum flux divergence makes nearly 2 times larger contributions than those of the stationary component to the HCE change. The increased equatorward transient wave flux over the subtropics is possibly related to the larger meridional gradient of the transient wave refractive index there. The AO positive phase corresponds to an enhanced planetary wave propagation from the midlatitude Atlantic Ocean to the subtropics, which resembles the North Atlantic Oscillation pattern. The autumn and winter AO-HCE relationship is similar to that during spring, while summer has the weakest relationship, which could be mainly attributed to the far poleward extension of the climatological HCE during summer. |
英文关键词 | Arctic Oscillation Hadley circulation Waves atmospheric |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000472652400002 |
WOS关键词 | EXTRATROPICAL CIRCULATION ; TROPICAL EXPANSION ; ANNULAR MODES ; VARIABILITY ; PACIFIC ; IMPACT ; DRIVEN ; WINTER ; ENSO ; SIMULATIONS |
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/184721 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Joint Int Res Lab Climate & Environm Change, Key Lab Meteorol Disasters China,Minist Educ, Nanjing, Jiangsu, Peoples R China; 2.Nanjing Univ, Minist Educ, Key Lab Mesoscale Severe Weather, Nanjing, Jiangsu, Peoples R China; 3.Nanjing Univ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Hu, Dingzhu,Guo, Yi-Peng,Tan, Zhe-Min,et al. Interannual Relationship between the Boreal Spring Arctic Oscillation and the Northern Hemisphere Hadley Circulation Extent[J]. JOURNAL OF CLIMATE,2019,32(14):4395-4408. |
APA | Hu, Dingzhu,Guo, Yi-Peng,Tan, Zhe-Min,&Guan, Zhaoyong.(2019).Interannual Relationship between the Boreal Spring Arctic Oscillation and the Northern Hemisphere Hadley Circulation Extent.JOURNAL OF CLIMATE,32(14),4395-4408. |
MLA | Hu, Dingzhu,et al."Interannual Relationship between the Boreal Spring Arctic Oscillation and the Northern Hemisphere Hadley Circulation Extent".JOURNAL OF CLIMATE 32.14(2019):4395-4408. |
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