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A Comparative Study on Precipitation Climatology and Interannual Variability in the Lower Mid latitude East Asia and Central Asia
Yin, ZY (Yin, Zhi-Yong)[ 1,2 ]; Wang, HL (Wang, Hongli)[ 3 ]; Liu, XD (Liu, Xiaodong)[ 3,4 ]
2014-10-15
Source PublicationJOURNAL OF CLIMATE
Volume27Issue:20Pages:7830-7848
Subtype期刊论文
Abstract

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 (the W region). The focus is on the 5-month summer half year (May September) for the M region and the winter half year (December April) for the W region, 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 degrees and 45 degrees N is responsible for conducting moisture fluxes to the W region. 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 Nth-0 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.

DOI10.1175/JCLI-D-14-00052.1
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9836
Collection古环境研究室
Corresponding AuthorYin, ZY (Yin, Zhi-Yong)[ 1,2 ]
Affiliation1.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China, andDepartment of Environmental and Ocean Sciences,University of San Diego, San Diego, California;
2.Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China;
3.Institute of Earth Environment, Chinese Academy of Sciences, andXi’an Jiaotong University, Xi’an, China
Recommended Citation
GB/T 7714
Yin, ZY ,Wang, HL ,Liu, XD . A Comparative Study on Precipitation Climatology and Interannual Variability in the Lower Mid latitude East Asia and Central Asia[J]. JOURNAL OF CLIMATE,2014,27(20):7830-7848.
APA Yin, ZY ,Wang, HL ,&Liu, XD .(2014).A Comparative Study on Precipitation Climatology and Interannual Variability in the Lower Mid latitude East Asia and Central Asia.JOURNAL OF CLIMATE,27(20),7830-7848.
MLA Yin, ZY ,et al."A Comparative Study on Precipitation Climatology and Interannual Variability in the Lower Mid latitude East Asia and Central Asia".JOURNAL OF CLIMATE 27.20(2014):7830-7848.
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