NDLI: Interdecadal changes in the relationship between Southern China winter-spring precipitation and ENSO

Content Provider	Springer Nature Link
Author	Chen, Jiepeng Wen, Zhiping Wu, Renguang Chen, Zesheng Zhao, Ping
Copyright Year	2013
Abstract	Winter-spring precipitation in southern China tends to be higher (lower) than normal in El Niño (La Niña) years during 1953–1973. The relationship between the southern China winter-spring precipitation and El Niño-Southern Oscillation (ENSO) is weakened during 1974–1994. During 1953–1973, above-normal southern China rainfall corresponds to warmer sea surface temperature (SST) in the equatorial central Pacific. There are two anomalous vertical circulations with ascent over the equatorial central Pacific and ascent over southern China and a common branch of descent over the western North Pacific that is accompanied by an anomalous lower-level anticyclone. During 1974–1994, above-normal southern China rainfall corresponds to warmer SST in eastern South Indian Ocean and cooler SST in western South Indian Ocean. Two anomalous vertical circulations act to link southern China rainfall and eastern South Indian Ocean SST anomalies, with ascent over eastern South Indian Ocean and southern China and a common branch of descent over the western North Pacific. Present analysis shows that South Indian Ocean SST anomalies can contribute to southern China winter-spring precipitation variability independently. The observed change in the relationship between southern China winter-spring rainfall and ENSO is likely related to the increased SST variability in eastern South Indian Ocean and the modulation of the Pacific decadal oscillation.
Starting Page	1327
Ending Page	1338
Page Count	12
File Format	PDF
ISSN	09307575
Journal	Climate Dynamics
Volume Number	43
Issue Number	5-6
e-ISSN	14320894
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-09-22
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Interdecadal changes Southern China winter-spring precipitation-ENSO relationship South Indian Ocean SST Geophysics/Geodesy Climatology Oceanography
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

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