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	External and internal summer atmospheric variability in the western north pacific and east asia
	Lu, Riyu; Li, Ying; Dong, Buwen
刊名	Journal of the meteorological society of japan
	2006-06-01
卷号	84期号:3页码:447-462
ISSN号	0026-1165
通讯作者	Lu, riyu(lr@mail.iap.ac.cn)
英文摘要	The interannual variation of summer climate in the western north pacific and east asia (wnp/ea) has been investigated in this study using an experiment forced by global observed sea surface temperatures (ssts). the ensemble integrations enable us to separate externally forced variability from internal variability. it is found that the lower-tropospheric circulation anomaly over the wnp is dominated by the external variability forced by ssts, while the anomaly of the east asian jet (eaj), is dominated by the atmospheric internal variability. the external variability in the wnp/ea sector is mainly reflected by the first leading empirical orthogonal function (eof) mode of lower-tropospheric zonal wind, and partially by the second mode. the first mode is characterized by a cyclonic/anticyclonic circulation anomaly over the tropical wnp, reflecting changes in the wnp subtropical high. this mode is associated with precipitation and sst anomalies in the tropics. the second mode is characterized by a wave-like pattern of zonal wind in the meridional direction, with zonally-oriented cells over the vvnp. this second mode is associated with very weak sst anomalies, and more like a mode of the internal variability. the internal mode is found to be well organized in the wnp/ea sector. the features associated with this mode include the meridional displacement, and intensity variation of eaj, and precipitation anomaly over the wnp.
WOS关键词	INTERANNUAL VARIABILITY ; EL-NINO ; INTRASEASONAL OSCILLATION ; BAIU RAINFALL ; COUPLED MODEL ; JET-STREAM ; WARM POOL ; MONSOON ; IMPACT ; CLIMATE
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
语种	英语
出版者	METEOROLOGICAL SOC JPN
WOS记录号	WOS:000239669800002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2379166
专题	中国科学院大学
通讯作者	Lu, Riyu
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, China Grad Sch, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China 4.Univ Reading, NCAS, Ctr Global Atmospher Modelling, Dept Meteorol, Reading RG6 2AH, Berks, England
推荐引用方式 GB/T 7714	Lu, Riyu,Li, Ying,Dong, Buwen. External and internal summer atmospheric variability in the western north pacific and east asia[J]. Journal of the meteorological society of japan,2006,84(3):447-462.
APA	Lu, Riyu,Li, Ying,&Dong, Buwen.(2006).External and internal summer atmospheric variability in the western north pacific and east asia.Journal of the meteorological society of japan,84(3),447-462.
MLA	Lu, Riyu,et al."External and internal summer atmospheric variability in the western north pacific and east asia".Journal of the meteorological society of japan 84.3(2006):447-462.

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