NDLI: Influence of internal decadal variability on the summer rainfall in Eastern China as simulated by CCSM4

Content Provider	Springer Nature Link
Author	Zhu, Yali Wang, Tao Ma, Jiehua
Copyright Year	2016
Abstract	The combined impact of the Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO) on the summer rainfall in eastern China was investigated using CCSM4. The strongest signals occur with the combination of a positive PDO and a negative AMO (+PDO−AMO), as well as a negative PDO and a positive AMO (−PDO+AMO). For the +PDO−AMO set, significant positive rainfall anomalies occur over the lower reaches of the Yangtze River valley (YR), when the East Asian summer monsoon becomes weaker, while the East Asian westerly jet stream becomes stronger, and ascending motion over the YR becomes enhanced due to the jet-related secondary circulation. Contrary anomalies occur over East Asia for the −PDO+AMO set. The influence of these two combinations of PDO and AMO on the summer rainfall in eastern China can also be observed in the two interdecadal rainfall changes in eastern China in the late 1970s and late 1990s.
Starting Page	706
Ending Page	714
Page Count	9
File Format	PDF
ISSN	02561530
Journal	Advances in Atmospheric Sciences
Volume Number	33
Issue Number	6
e-ISSN	18619533
Language	English
Publisher	Science Press
Publisher Date	2016-04-01
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Pacific Decadal Oscillation Atlantic Multidecadal Oscillation eastern China summer rainfall CCSM4 Atmospheric Sciences Meteorology Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

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