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
发表期刊CLIMATE DYNAMICS
卷号50期号:2018-11-12页码:4707-4719
摘要This 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.
部门归属[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
关键词Setio Sst Warming 2015/16 El Nino Anomalous Anticyclone "c-shape" Wind Anomaly Pattern Indo-pacific Climate
学科领域Meteorology & Atmospheric Sciences
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/17069
专题热带海洋环境国家重点实验室(LTO)
通讯作者duyan@scsio.ac.cn
推荐引用方式
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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