GSTDTAP  > 气候变化
DOI10.1002/joc.6234
Impact of winter SST anomaly in tropical Eastern Pacific on following summer tropical cyclone precipitation in China
Wang, Lei; Chen, Jilong; Wu, Liang
2019-07-31
发表期刊INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN0899-8418
EISSN1097-0088
出版年2019
文章类型Article;Early Access
语种英语
国家Peoples R China
英文摘要

This study reveals a significant effect of the winter sea surface temperature (SST) anomaly (SSTA) in the tropical Eastern Pacific (TEP) on the following summer tropical cyclone precipitation (TCP) in mainland China. During the period 1979-2015, the positive winter TEP SSTA forces a SST zonal tripole pattern anomaly, which is positive SSTA in the tropical Indian Ocean (TIO), negative SSTA in the tropical Western Pacific (TWP), and positive SSTA in the TEP. This SSTA pattern triggers two simultaneous zonal circulation anomalies. One exhibits lower-level convergent winds, mid-tropospheric ascendant flows and upper-level divergent winds over the Western TIO, and reversed situations over the TWP, producing anomalous lower-level easterlies and upper-level westerlies between the TIO and TWP. The other shows lower-level convergence, mid-tropospheric ascent, upper-level divergence over the TEP, and reversed situations over the TWP, which create lower-level westerlies and upper-level easterlies between the TWP and TEP. The two circulation anomalies further warm the TEP (Western TIO) by driving ambient warm water toward this region and cool the TWP by inducing local upwelling, which facilitates the persistence of the anomalies until the summer. Consequently, the lower-level negative vorticity, strong vertical wind shear and the lower-level anticyclone anomalies over most of the Western North Pacific (WNP) are accompanied with anomalous mid-tropospheric westerlies over the coastal regions in mainland China, suppressing TC genesis and movement towards mainland China so as to decrease the summer TCP in mainland China. These results provide an important implication that the winter TEP SSTA is a potential indicator for seasonal prediction of the WNP TC activity and the TCP in mainland China.


英文关键词air-sea interaction sea surface temperature anomaly tropical cyclone precipitation zonal circulation anomaly
领域气候变化
收录类别SCI-E
WOS记录号WOS:000481347800001
WOS关键词SEA-SURFACE TEMPERATURE ; INDIAN-OCEAN ; INTERANNUAL VARIABILITY ; RAINFALL VARIABILITY ; INTERDECADAL CHANGES ; EL-NINO ; ENSO ; ATLANTIC ; CLIMATE ; GENESIS
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/185366
专题气候变化
作者单位Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, POB 2718, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Wang, Lei,Chen, Jilong,Wu, Liang. Impact of winter SST anomaly in tropical Eastern Pacific on following summer tropical cyclone precipitation in China[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019.
APA Wang, Lei,Chen, Jilong,&Wu, Liang.(2019).Impact of winter SST anomaly in tropical Eastern Pacific on following summer tropical cyclone precipitation in China.INTERNATIONAL JOURNAL OF CLIMATOLOGY.
MLA Wang, Lei,et al."Impact of winter SST anomaly in tropical Eastern Pacific on following summer tropical cyclone precipitation in China".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2019).
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