DOI: 10.1175/JCLI-D-14-00052.1
Scopus记录号: 2-s2.0-84907851151
论文题名: A comparative study on precipitation climatology and interannual variability in the lower midlatitude East Asia and central Asia
作者: Yin Z.-Y. ; Wang H. ; Liu X.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2014
卷: 27, 期: 20 起始页码: 7830
结束页码: 7848
语种: 英语
Scopus关键词: Central Asia
; Comparative studies
; East Asia
; Interannual variability
; Midlatitudes
; Precipitation climatology
; annual variation
; anticyclone
; atmospheric circulation
; El Nino-Southern Oscillation
; midlatitude environment
; monsoon
; precipitation (climatology)
; semiarid region
; summer
; teleconnection
; westerly
; Atlantic Ocean
; Atlantic Ocean (East)
; Central Asia
; China
; Eurasia
; Far East
; Pacific Ocean
; Pacific Ocean (North)
; Philippine Sea
; Qinghai-Xizang Plateau
; Russian Federation
英文摘要: This study examines precipitation climatology and interannual variability in two regions in the lower midlatitude Asia to the east and west of the Tibetan Plateau, one located in monsoonal East Asia (the M region) and the other in semiarid central Asia (theWregion). The focus is on the 5-month summer half year (May-September) for theMregion and the winter half year (December-April) for theWregion, corresponding to their respective rainy seasons. The main mechanism of moisture transport for the M region is the summer lower-tropospheric southerly winds, whereas the winter midtropospheric westerly circulation between 25° and 45°N is responsible for conducting moisture fluxes to theWregion. It is further discovered that the winter precipitation series are positively correlated between the two regions (r = 0.47). There is also a weak cross-seasonal correlation between the winter W region precipitation and summer M region precipitation (r = 0.27). Winter westerly circulation over the W region is influenced by both the east Atlantic-western Russia and the polar-Eurasia extratropical teleconnection patterns, while El Niño- Southern Oscillation influences regional circulation patterns in both regions through teleconnections via the Indo-Pacific warm pool convection in winter and its lagged impact on the western North Pacific anticyclone over the Philippine Sea. In the meantime, responses of the regional winter circulation in the M region to the upstream westerly circulation intensity cause the correlation in winter precipitation between the two regions. Such linkages form the basis of the concurrent and cross-seasonal correlations in precipitation between the two remote regions. © 2014 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51256
Appears in Collections: 气候变化事实与影响
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作者单位: SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; Department of Environmental and Ocean Sciences, University of San Diego, San Diego, CA, United States; Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; Institute of Earth Environment, Chinese Academy of Sciences, Xi'an Jiaotong University, Xi'an, China
Recommended Citation:
Yin Z.-Y.,Wang H.,Liu X.. A comparative study on precipitation climatology and interannual variability in the lower midlatitude East Asia and central Asia[J]. Journal of Climate,2014-01-01,27(20)