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DOI | 10.1175/JCLI-D-18-0082.1 |
Interdecadal Seesaw of Precipitation Variability between North China and the Southwest United States | |
Yang, Qing1; Ma, Zhuguo1,2; Wu, Peili3; Klingaman, Nicholas P.4; Zhang, Lixia5 | |
2019-05-01 | |
发表期刊 | JOURNAL OF CLIMATE
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ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2019 |
卷号 | 32期号:10页码:2951-2968 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; England |
英文摘要 | This paper reports a consistent seesaw relationship between interdecadal precipitation variability over North China and the Southwest United States, which can be found in observations and simulations with several models. Idealized model simulations suggest the seesaw could be mainly driven by the interdecadal Pacific oscillation (IPO), through a large-scale circulation anomaly occupying the entire northern North Pacific, while the Atlantic multidecadal oscillation (AMO) contributes oppositely and less. Modulation of precipitation by the IPO tends to be intensified when the AMO is in the opposite phase, but weakened when the AMO is in the same phase. The warm IPO phase is associated with an anomalous cyclone over the northern North Pacific; consequently, anomalous southwesterly winds bring more moisture and rainfall to the Southwest United States, while northwesterly wind anomalies prevail over North China with negative rainfall anomalies. The east-west seesaw of rainfall anomalies reverses sign when the circulation anomaly becomes anticyclonic during the cold IPO phase. The IPO-related tropical SST anomalies affect the meridional temperature gradient over the North Pacific and adjacent regions and the mean meridional circulation. In the northern North Pacific, the atmospheric response to IPO forcing imposes an equivalent barotropic structure throughout the troposphere. An important implication from this study is the potential predictability of drought-related water stresses over these arid and semiarid regions, with the progress of our understanding and prediction of the IPO and AMO. |
英文关键词 | Atmospheric circulation Hadley circulation Teleconnections Drought Pacific decadal oscillation Precipitation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000466358400001 |
WOS关键词 | ATLANTIC MULTIDECADAL OSCILLATION ; PACIFIC DECADAL VARIABILITY ; MERIDIONAL MODES ; SUMMER RAINFALL ; CLIMATE MODELS ; EASTERN CHINA ; PART I ; ASIA ; PATTERNS ; AMERICA |
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/183009 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Key Lab Reg Climate Environm Res Temperate East A, Inst Atmospher Phys, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China; 3.Hadley Ctr, Met Off, Exeter, Devon, England; 4.Univ Reading, Dept Meteorol, Natl Ctr Atmospher Sci, Reading, Berks, England; 5.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Qing,Ma, Zhuguo,Wu, Peili,et al. Interdecadal Seesaw of Precipitation Variability between North China and the Southwest United States[J]. JOURNAL OF CLIMATE,2019,32(10):2951-2968. |
APA | Yang, Qing,Ma, Zhuguo,Wu, Peili,Klingaman, Nicholas P.,&Zhang, Lixia.(2019).Interdecadal Seesaw of Precipitation Variability between North China and the Southwest United States.JOURNAL OF CLIMATE,32(10),2951-2968. |
MLA | Yang, Qing,et al."Interdecadal Seesaw of Precipitation Variability between North China and the Southwest United States".JOURNAL OF CLIMATE 32.10(2019):2951-2968. |
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