干旱区生态环境知识资源中心(Arid): Definition of the core zone of the westerlies-dominated climatic regime, and its controlling factors during the instrumental period

Arid

	Definition of the core zone of the westerlies-dominated climatic regime, and its controlling factors during the instrumental period
	Huang Wei; Chen Jianhui; Zhang Xiaojian; Feng Song; Chen Fahu
来源期刊	Science China. Earth Sciences
ISSN	1674-7313
出版年	2015
卷号	58 期号:5 页码:676-684
英文摘要	The term "westerlies-dominated climatic regime" describes the pattern of precipitation/moisture variations between westerliesdominated arid Central Asia(ACA) and mid-latitude monsoon-dominated Asia on decadal to multi-millennial time scales. However, no attempts have been made to define its core region and the possible physical mechanisms responsible during the period of instrumental observations. The present study investigates the spatiotemporal variations of summer and winter precipitation on interannual to decadal time scales over mid-latitudes of the Eurasian continent using Empirical Orthogonal Function(EOF) analysis. Our results suggest the existence of an opposing pattern of summer precipitation variations between ACA and mid-latitude monsoon-dominated Asia and Mediterranean on decadal time scales. Based on these results, the core region influenced by the westerlies is outlined, including arid central Asia and Xinjiang in China(36°-54°N, 50°-90°E). By using monthly NCEP-NCAR reanalysis, the relationship between the "westerlies-dominated climatic regime" and atmospheric circulation were also analyzed. The combination of the zonal climatic teleconnection pattern and anomalous Indian Summer Monsoon Precipitation(ISMP) causes the precipitation characteristics of the "westerlies-dominated climatic regime" precipitation pattern. In addition, the Atlantic Multidecadal Oscillation(AMO) may also have an important effect on the "westerlies-dominated climatic regime".
英文关键词	core zone of the "westerlies-dominated climatic regime" decadal-interannual Atlantic Multidecadal Oscillation(AMO) Indian Summer
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5445029
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335506
作者单位	Huang Wei, Lanzhou University, MOE Key Laboratory of West Chinas Environmental System, Lanzhou, Gansu 730000, China.; Chen Jianhui, Lanzhou University, MOE Key Laboratory of West Chinas Environmental System, Lanzhou, Gansu 730000, China.; Zhang Xiaojian, Lanzhou University, MOE Key Laboratory of West Chinas Environmental System, Lanzhou, Gansu 730000, China.; Chen Fahu, Lanzhou University, MOE Key Laboratory of West Chinas Environmental System, Lanzhou, Gansu 730000, China.; Feng Song, Department of Geosciences, University of Arkansas, Fayetteville, 72701, USA.
推荐引用方式 GB/T 7714	Huang Wei,Chen Jianhui,Zhang Xiaojian,et al. Definition of the core zone of the westerlies-dominated climatic regime, and its controlling factors during the instrumental period[J],2015,58(5):676-684.
APA	Huang Wei,Chen Jianhui,Zhang Xiaojian,Feng Song,&Chen Fahu.(2015).Definition of the core zone of the westerlies-dominated climatic regime, and its controlling factors during the instrumental period.Science China. Earth Sciences,58(5),676-684.
MLA	Huang Wei,et al."Definition of the core zone of the westerlies-dominated climatic regime, and its controlling factors during the instrumental period".Science China. Earth Sciences 58.5(2015):676-684.