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	The antarctic oscillation-east asian summer monsoon connections in ncep-1 and era-40
	Zhu Yali1,2,3
刊名	Advances in atmospheric sciences
	2009-07-01
卷号	26期号:4页码:707-716
关键词	Antarctic oscillation East asian summer monsoon Ncep-1 Era-40
ISSN号	0256-1530
DOI	10.1007/s00376-009-8196-2
通讯作者	Zhu yali(zhuyl@mail.iap.ac.cn)
英文摘要	Connections between the spring antarctic oscillation (aao) and the east asian summer monsoon (easm) in two reanalysis datasets-ncep-1 (ncep/ncar reanalysis 1) and era-40 (ecmwf 40 year reanalysis)-are investigated in this study. both show significant correlation between aao and easm rainfall over the yangtze river valley, especially after about 1985. though era-40 shows weaker anomalous signals connecting aao and easm over southern high latitudes than ncep-1, both datasets reveal similar connecting patterns between them. a wave-train-like pattern appears in the upper levels, from southern high latitudes through east of australia and from the maritime continent to east asia. in positive aao years, the cross equatorial southeasterly flow over the maritime continent in the lower levels is strengthened, the specific humidity of the whole atmosphere over east asia increases, and convective activity is enhanced; thus the summer rainfall over east asia increases. the spring aao-easm connection may be better represented in era-40.
WOS关键词	ANNULAR MODE ; REANALYSES ; VARIABILITY ; PRECIPITATION ; CIRCULATION ; PRODUCTS ; PACIFIC
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000267773800011
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2404910
专题	中国科学院大学
通讯作者	Zhu Yali
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, CCRC, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhu Yali. The antarctic oscillation-east asian summer monsoon connections in ncep-1 and era-40[J]. Advances in atmospheric sciences,2009,26(4):707-716.
APA	Zhu Yali.(2009).The antarctic oscillation-east asian summer monsoon connections in ncep-1 and era-40.Advances in atmospheric sciences,26(4),707-716.
MLA	Zhu Yali."The antarctic oscillation-east asian summer monsoon connections in ncep-1 and era-40".Advances in atmospheric sciences 26.4(2009):707-716.

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