SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Indo-Pacific climate during the decaying phase of the 2015/16 El Nio: role of southeast tropical Indian Ocean warming
Chen, ZS; Du, Y; Wen, ZP; Wu, RG; Wang, CZ; duyan@scsio.ac.cn
2018
Source PublicationCLIMATE DYNAMICS
Volume50Issue:2018-11-12Pages:4707-4719
AbstractThis study investigates the influence of southeast tropical Indian Ocean (SETIO) sea surface temperature (SST) warming on Indo-Pacific climate during the decaying phase of the 2015/16 El Nio by using observations and model experiments. The results show that the SETIO SST warming in spring 2016 enhanced local convection and forced a "C-shape" wind anomaly pattern in the lower troposphere. The "C-shape" wind anomaly pattern over the eastern tropical Indian Ocean consists of anomalous westerly flow south of the equator and anomalous easterly flow north of the equator. The anomalous easterly flow then extended eastward into the western North Pacific (WNP) and facilitates the development or the maintenance of an anomalous anticyclone over the South China Sea (SCS). Correspondingly, the eastern part of the Bay of Bengal, the SCS and the WNP suffered less rainfall. Such precipitation features and the associated "C-shape" wind anomaly pattern shifted northward about five latitudes in summer 2016. Additionally, the SETIO warming can induce local meridional circulation anomalies, which directly affect Indo-Pacific climate. Numerical model experiments further confirm that the SETIO SST warming plays an important role in modulating Indo-Pacific climate.
Department[Chen, Zesheng; Du, Yan; Wang, Chunzai] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, 164 West Xingang Rd, Guangzhou 510301, Guangdong, Peoples R China; [Wen, Zhiping] Fudan Univ, Inst Atmospher Sci, Shanghai, Peoples R China; [Wu, Renguang] Chinese Acad Sci, Ctr Monsoon Syst Res, Inst Atmospher Phys, Beijing, Peoples R China
KeywordSetio Sst Warming 2015/16 El Nino Anomalous Anticyclone "c-shape" Wind Anomaly Pattern Indo-pacific Climate
Subject AreaMeteorology & Atmospheric Sciences
Funding ProjectLTO
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17069
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorduyan@scsio.ac.cn
Recommended Citation
GB/T 7714
Chen, ZS,Du, Y,Wen, ZP,et al. Indo-Pacific climate during the decaying phase of the 2015/16 El Nio: role of southeast tropical Indian Ocean warming[J]. CLIMATE DYNAMICS,2018,50(2018-11-12):4707-4719.
APA Chen, ZS,Du, Y,Wen, ZP,Wu, RG,Wang, CZ,&duyan@scsio.ac.cn.(2018).Indo-Pacific climate during the decaying phase of the 2015/16 El Nio: role of southeast tropical Indian Ocean warming.CLIMATE DYNAMICS,50(2018-11-12),4707-4719.
MLA Chen, ZS,et al."Indo-Pacific climate during the decaying phase of the 2015/16 El Nio: role of southeast tropical Indian Ocean warming".CLIMATE DYNAMICS 50.2018-11-12(2018):4707-4719.
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