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Thermal variations in the South China Sea associated with the eastern and central Pacific El Nino events and their mechanisms
Liu, Qin-Yan1; Wang, Dongxiao1; Wang, Xin1; Shu, Yeqiang1; Xie, Qiang2; Chen, Ju1
2014-12-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
Volume119Issue:12Pages:8955-8972
AbstractIn this study, we investigate the interannual variability of the sea surface temperature (SST) in the South China Sea (SCS) associated with two types of El Nino, namely, the eastern Pacific (EP) El Nino and the central Pacific (CP) El Nino. First, double warm peaks can occur during both types of El Nino events in the SCS. However, the strong warm basin mode can only develop in the EP El Nino, while the warm semibasin mode exists during the CP El Nino. Associated with an anomalous positive (negative) net surface heat flux in the EP (CP) El Nino, along with a shallower thermocline with weaker (stronger) northeasterly wind anomalies, the SST anomalies become warmer (cooler) in the developing autumn. Over the background of cooling SST in autumn of CP El Nino, therefore, only a weak warming can occur in the subsequent years, which is limited in the western boundary area under the forcing of warm ocean advection. Second, the SST oscillation periods are different in these two types of El Nino. The SST evolution in the EP El Nino is negative-positive with a quasi-biennial oscillation, but that in the CP El Nino is positive-negative-positive-negative with an annual oscillation. It seems that the double cooling in the CP El Nino is phase-locked to the late autumn season.
SubtypeArticle
KeywordEastern Pacific El Nino Central Pacific El Nino Basin Mode Semibasin Mode Oscillation Period
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1002/2014JC010429
Indexed BySCI
Language英语
WOS KeywordSURFACE TEMPERATURE ; INTERANNUAL VARIABILITY ; DIFFERENT IMPACTS ; ASIAN CLIMATE ; OCEAN ; ENSO ; SUMMER ; CIRCULATION ; KUROSHIO ; MODOKI
WOS SubjectOceanography
WOS IDWOS:000348452800041
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/764
Collection深海科学研究部_海洋环流观测与数值模拟研究室
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
2.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China
Recommended Citation
GB/T 7714
Liu, Qin-Yan,Wang, Dongxiao,Wang, Xin,et al. Thermal variations in the South China Sea associated with the eastern and central Pacific El Nino events and their mechanisms[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2014,119(12):8955-8972.
APA Liu, Qin-Yan,Wang, Dongxiao,Wang, Xin,Shu, Yeqiang,Xie, Qiang,&Chen, Ju.(2014).Thermal variations in the South China Sea associated with the eastern and central Pacific El Nino events and their mechanisms.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,119(12),8955-8972.
MLA Liu, Qin-Yan,et al."Thermal variations in the South China Sea associated with the eastern and central Pacific El Nino events and their mechanisms".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 119.12(2014):8955-8972.
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