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DOI | 10.1088/1748-9326/aadd84 |
Influence of South Pacific quadrapole on austral winter precipitation over the SPCZ | |
Qin, Jianhuang1; Zhou, Lei1,2,3; Ding, Ruiqiang4,5; Li, Jianping6 | |
2018-09-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | The South Pacific convergence zone (SPCZ) is a key component in the weather and climate system. By analogy to the intertropical convergence zone, the SPCZ is also part of the 'engine' for the tropical convection. There have been many studies about the tropical impacts on the SPCZ. Here, we show that the SPCZ, especially the precipitation in this region, is subject to the influence of South Pacific quadrapole (SPQ) in the subtropics via the mechanism of wind-evaporation-sea surface temperature feedback (SST). The anomalous winds (at 850 hPa) induced by the SST anomaly gradient produce low-level convergence and activate upward motion over the SPCZ region, ultimately leading to deep convection and enhanced precipitation there. As a result, the variability in the SPQ leads the changes in the SPCZ by about 5 months. Such extratropical impacts on the SPCZ are independent of the El Nino/Southern Oscillation, which has been demonstrated to have significant impacts on the SPCZ in existing studies. The process study unveils a new connection between the subtropics in the Southern Hemisphere and the tropics, which can potentially enhance predictive understanding of the SPCZ with obvious implications for the weather and climate system. |
英文关键词 | South Pacific quadrapole extra-tropics South Pacific convergence zone sea surface temperature anomaly gradient low-level convergence |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000445122600004 |
WOS关键词 | SEASONAL FOOTPRINTING MECHANISM ; GLOBAL PRECIPITATION ; CONVERGENCE ZONE ; VARIABILITY ; DATASET ; PROJECT ; ENSO ; OSCILLATION ; REANALYSIS ; MODEL |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/37639 |
专题 | 气候变化 |
作者单位 | 1.Shanghai Jiao Tong Univ, Inst Oceanog IOO, Shanghai, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China; 3.Second Inst Oceanog, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Zhejiang, Peoples R China; 4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China; 5.Chengdu Univ Informat Technol, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu 610225, Sichuan, Peoples R China; 6.Beijing Normal Univ, Coll Global Change & Earth Syst Sci GCESS, Beijing 100875, Peoples R China |
推荐引用方式 GB/T 7714 | Qin, Jianhuang,Zhou, Lei,Ding, Ruiqiang,et al. Influence of South Pacific quadrapole on austral winter precipitation over the SPCZ[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(9). |
APA | Qin, Jianhuang,Zhou, Lei,Ding, Ruiqiang,&Li, Jianping.(2018).Influence of South Pacific quadrapole on austral winter precipitation over the SPCZ.ENVIRONMENTAL RESEARCH LETTERS,13(9). |
MLA | Qin, Jianhuang,et al."Influence of South Pacific quadrapole on austral winter precipitation over the SPCZ".ENVIRONMENTAL RESEARCH LETTERS 13.9(2018). |
条目包含的文件 | 条目无相关文件。 |
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