DOI: 10.1007/s00382-015-2760-5
Scopus记录号: 2-s2.0-84937707799
论文题名: Signals of the South China Sea summer rainfall variability in the Indian Ocean
作者: He Z. ; Wu R. ; Wang W.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 46, 期: 2017-09-10 起始页码: 3181
结束页码: 3195
语种: 英语
英文关键词: CESM–CAM
; South China Sea summer rainfall
; Spring asymmetric mode
; Summer South Indian Ocean SST
; Winter western-equatorial Indian Ocean SST
英文摘要: The present study investigates signals of the South China Sea (SCS) summer rainfall variability in the Indian Ocean. It is found that the SCS summer rainfall has a negative relationship with December–January–February (DJF) western-equatorial Indian Ocean (WIO) sea surface temperature (SST), a positive relationship with an asymmetric mode of precipitation anomalies in the tropical Indian Ocean during March–April–May (MAM), and a positive relationship with June–July–August (JJA) South Indian Ocean (SIO) SST. The WIO SST anomalies induce same-sign southeast Indian Ocean SST anomalies through an anomalous zonal vertical circulation. The southeast Indian Ocean SST anomalies last from late winter to early summer and induce opposite-sign SCS summer rainfall anomalies via an anomalous meridional vertical circulation. The asymmetric mode influences the SCS summer rainfall variation via the North Indian Ocean (NIO) SST anomalies with significant cloud–radiation and wind–evaporation effect. Positive (negative) SIO SST anomalies drive an anomalous direct circulation between the SIO and the NIO, and an anomalous indirect circulation between the NIO and the SCS which facilitates the occurrence of cyclonic (anti–cyclonic) wind anomalies over the SCS–western North Pacific and results in positive (negative) SCS summer rainfall anomalies. Partial correlation analysis indicates that the influence of DJF WIO SST anomalies and JJA SIO SST anomalies on the SCS summer rainfall is partly ENSO-independent, while the MAM asymmetric mode is mostly related to the preceding DJF eastern Pacific SST anomalies. © 2015, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53751
Appears in Collections: 过去全球变化的重建
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作者单位: State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Institute of Space and Earth Information Science and Shenzhen Research Institute, The Chinese University of Hong Kong, Hong Kong SAR, China; Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Hong Kong SAR, China
Recommended Citation:
He Z.,Wu R.,Wang W.. Signals of the South China Sea summer rainfall variability in the Indian Ocean[J]. Climate Dynamics,2016-01-01,46(2017-09-10)