兰州大学机构库 >大气科学学院
Spatio-temporal variability of winter temperature and precipitation in Southwest China
Jiang, XW; Li, YQ; Jiang, XW (reprint author), Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China.
Indexed BySCIE ; CSCD
2011-04
Source PublicationJOURNAL OF GEOGRAPHICAL SCIENCES
ISSN1009-637X
Volume21Issue:2Pages:250-262
AbstractIn recent years, the socio-economic impacts of winter extreme climate events have underscored the importance of winter climate anomalies in Southwest China (SWC). The spatio-temporal variability of surface air temperature (SAT) and precipitation in SWC and their possible causes have been investigated in this paper based on observational data from 1961 to 2010. The results indicate that SAT anomalies in SWC have two dominate modes, one is homogenous, and the other a zonal dipole. The former is caused by the anomalies of East Asian winter monsoon; the latter arises from the anomalies of both subtropical west Pacific high and regional cold air in lower troposphere. The most dominant mode of precipitation anomalies in SWC is homogenous and it has a high correlation with northern hemisphere annular mode (NAM, AO). Neither NAM nor ENSO has significant impacts on SAT in SWC. The anomalies of NAM are associated with the anomalies of tropical circulations, and therefore precipitation over the SWC. When NAM is in positive (negative) phase, the winter precipitation is more (less) than normal in SWC. Winter precipitation increase over the whole SWC is associated with the El Nino. However, during La Nina winter, the pattern is not uniform. There is an increase in precipitation over the central parts and a decrease in western and eastern parts of SWC. The severe drought in SWC in winter 2010 is more likely caused by anomalies of NAM, not El Nino.
KeywordSouthwest China winter 2010 drought winter monsoon northern hemisphere annular mode (NAM, AO)
Subject AreaPhysical Geography
PublisherSCIENCE CHINA PRESS
Publication PlaceBEIJING
DOI10.1007/s11442-011-0842-9
First Inst
Language英语
Project NumberNational Natural Science Foundation of China [40875060, 60832012] ; Institute of Plateau Meteorology, China Meteorological Administration [BROP201017]
Funding Project国家自然科学基金项目
Funding OrganizationNSFC
SubtypeArticle
WOS IDWOS:000286696100005
CSCD IDCSCD:4125844
Department[Jiang Xingwen] Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China;
[Jiang Xingwen;
Li Yueqing] China Meteorol Adm, Inst Plateau Meteorol, Chengdu 610072, Peoples R China
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Cited Times:6[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/119219
Collection大气科学学院
Corresponding AuthorJiang, XW (reprint author), Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China.
Recommended Citation
GB/T 7714
Jiang, XW,Li, YQ,Jiang, XW . Spatio-temporal variability of winter temperature and precipitation in Southwest China[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2011,21(2):250-262.
APA Jiang, XW,Li, YQ,&Jiang, XW .(2011).Spatio-temporal variability of winter temperature and precipitation in Southwest China.JOURNAL OF GEOGRAPHICAL SCIENCES,21(2),250-262.
MLA Jiang, XW,et al."Spatio-temporal variability of winter temperature and precipitation in Southwest China".JOURNAL OF GEOGRAPHICAL SCIENCES 21.2(2011):250-262.
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