Impacts of ENSO on the Bay of Bengal Summer Monsoon Onset via Modulating the Intraseasonal Oscillation

doi:10.1029/2018GL078109

	Impacts of ENSO on the Bay of Bengal Summer Monsoon Onset via Modulating the Intraseasonal Oscillation
	Li, Kuiping 1,2; Liu, Yanliang 1,2; Li, Zhi 1,2; Yang, Yang 1,2; Feng, Lin 1,2; Khokiattiwong, Somkiat 3; Yu, Weidong 1,2; Liu, Shouhua 4
刊名	GEOPHYSICAL RESEARCH LETTERS
	2018-05-28
卷号	45 期号:10 页码:5220-5228
关键词	monsoon onset intraseasonal oscillation ENSO
ISSN号	0094-8276
DOI	10.1029/2018GL078109
英文摘要	The Bay of Bengal (BoB) summer monsoon is often triggered by northward propagating intraseasonal oscillations (ISOs) in the eastern Indian Ocean. The timing of summer monsoon onset, with a mean date of 1 May and standard deviation of 13 days, is substantially advanced (delayed) following a cold (warm) ENSO event. In this study, the significant ENSO-onset anomaly relationship is understood by investigating the ENSO modulations on the pivotal monsoon trigger. In the decaying spring of a cold (warm) ENSO event, pronounced easterly (westerly) vertical wind shear anomalies are induced in the northern Indian Ocean due to the enhanced (suppressed) convection anomalies in the northwestern Pacific Ocean. The above interannual vertical shear difference dominantly (more than 60%) contributes to a distinct ISO intensity contrast in the northern BoB. Consequently, the strengthened (weakened) ISOs associated with cold (warm) ENSO events lead to advanced (delayed) onsets of BoB summer monsoon.
资助项目	NSFC[41606034] ; NSFC[41406034]
WOS关键词	WESTERN NORTH PACIFIC ; MADDEN-JULIAN OSCILLATION ; SEA-SURFACE TEMPERATURE ; SOUTH CHINA SEA ; INTERANNUAL VARIABILITY ; EQUATORIAL WAVES ; ASSOCIATION ; ANOMALIES ; MODEL
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000435262000076
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/26446]
专题	自然资源部第一海洋研究所
通讯作者	Li, Kuiping
作者单位	1.State Ocean Adm, Ctr Ocean & Climate Res, Inst Oceanog 1, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China 3.Phuket Marine Biol Ctr, Dept Marine & Coastal Resources, Phuket, Thailand 4.Natl Marine Data & Informat Serv, Tianjin, Peoples R China
推荐引用方式 GB/T 7714	Li, Kuiping,Liu, Yanliang,Li, Zhi,et al. Impacts of ENSO on the Bay of Bengal Summer Monsoon Onset via Modulating the Intraseasonal Oscillation[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(10):5220-5228.
APA	Li, Kuiping.,Liu, Yanliang.,Li, Zhi.,Yang, Yang.,Feng, Lin.,...&Liu, Shouhua.(2018).Impacts of ENSO on the Bay of Bengal Summer Monsoon Onset via Modulating the Intraseasonal Oscillation.GEOPHYSICAL RESEARCH LETTERS,45(10),5220-5228.
MLA	Li, Kuiping,et al."Impacts of ENSO on the Bay of Bengal Summer Monsoon Onset via Modulating the Intraseasonal Oscillation".GEOPHYSICAL RESEARCH LETTERS 45.10(2018):5220-5228.