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学科主题: Meteorology & Atmospheric Sciences
题名: Relationship between sea level pressures of the winter tropical western Pacific and the subsequent Asian summer monsoon
作者: Wu, BY ; Wang, DX ; Huang, RH
关键词: winter circulation anomaly ; tropical western Pacific ; Asian summer monsoon
刊名: ADVANCES IN ATMOSPHERIC SCIENCES
发表日期: 2003
卷: 20, 期:4, 页:496-510
收录类别: sci
部门归属: Chinese Acad Sci, LASG, Inst Atmospher Phys, Beijing 100029, Peoples R China; Chinese Acad Sci, S China Sea Inst Oceanog, Guangzhou 510301, Peoples R China
项目归属: LED
摘要: Using monthly mean National Center for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis data for the period 1958-1996, based on a new circulation index in the tropical western Pacific region, this paper investigates extreme winter circulation conditions in the northwestern Pacific and their evolution. The results show that the extreme winter circulation anomaly in the northwestern Pacific exhibits a strong association with those appearing in the high latitudes of the Northern Hemisphere including the northern Asian continent, part of the Barents Sea, and the northeastern Pacific. As the season progresses, an anticyclonic (cyclonic) circulation anomaly appearing in the northwestern Pacific gradually moves northeastwards and extends westwards. Its axis in the west-east direction is also stretched. Therefore, easterly (westerly) anomalies in the southern part of the anticyclonic (cyclonic) circulation anomaly continuously expand westwards to the peninsula of India. Therefore, the South Asian summer monsoon would be weaker (stronger). Simultaneously, another interesting phenomenon is the evolution of SLP anomalies. As the season progresses (from winter to the following summer), SLP anomalies originating from the tropical western Pacific gradually move towards, and finally occupy the Asian continent, and further influence the thermal depression over the Asian continent in the following summer.
原文出处: 查看原文
WOS记录号: WOS:000184354700002
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/5555
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Recommended Citation:
Wu, BY; Wang, DX; Huang, RH.Relationship between sea level pressures of the winter tropical western Pacific and the subsequent Asian summer monsoon,ADVANCES IN ATMOSPHERIC SCIENCES,2003,20(4):496-510
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