Role of Western Pacific Oceanic variability in the onset of the Bay of Bengal summer monsoon

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Role of Western Pacific Oceanic variability in the onset of the Bay of Bengal summer monsoon
	Feng Junqiao 1,2; Hu Dunxin 1,2; Yu Lejiang 3
刊名	ADVANCES IN ATMOSPHERIC SCIENCES
	2013
卷号	30 期号:1 页码:219-234
关键词	summer monsoon onset ocean heat content warm pool Bay of Bengal
ISSN号	0256-1530
通讯作者	Feng, JQ
中文摘要	The influence of the tropical Indo-Pacific Ocean heat content on the onset of the Bay of Bengal summer monsoon (BOBSM) onset was investigated using atmospheric data from the NCEP and ocean subsurface temperature data from the Japan Metorology Agency (JMA). Results showed that the onset time of the BOBSM is highly related to the tropical Pacific upper ocean heat content (HC), especially in the key region of the western Pacific warm pool (WPWP), during the preceding winter and spring. When the HC anomalies in the WPWP are positive (negative), the onset of the BOBSM is usually early (late). Accompanied by the variation of the convection activity over the WPWP, mainly induced by the underlying ocean temperature anomalies, the Walker circulation becomes stronger or weaker. This enhances or weakens the westerly over the tropical Indian Ocean flowing into the BOB in the boreal spring, which is essential to BOBSM onset. The possible mechanism of influence of cyclonic/anti-cyclonic circulation over the northwestern tropical Pacific on BOBSM onset is also discussed.
英文摘要	The influence of the tropical Indo-Pacific Ocean heat content on the onset of the Bay of Bengal summer monsoon (BOBSM) onset was investigated using atmospheric data from the NCEP and ocean subsurface temperature data from the Japan Metorology Agency (JMA). Results showed that the onset time of the BOBSM is highly related to the tropical Pacific upper ocean heat content (HC), especially in the key region of the western Pacific warm pool (WPWP), during the preceding winter and spring. When the HC anomalies in the WPWP are positive (negative), the onset of the BOBSM is usually early (late). Accompanied by the variation of the convection activity over the WPWP, mainly induced by the underlying ocean temperature anomalies, the Walker circulation becomes stronger or weaker. This enhances or weakens the westerly over the tropical Indian Ocean flowing into the BOB in the boreal spring, which is essential to BOBSM onset. The possible mechanism of influence of cyclonic/anti-cyclonic circulation over the northwestern tropical Pacific on BOBSM onset is also discussed.
学科主题	Meteorology & Atmospheric Sciences
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Meteorology & Atmospheric Sciences
研究领域[WOS]	Meteorology & Atmospheric Sciences
关键词[WOS]	SOUTH CHINA SEA ; OUTGOING LONGWAVE RADIATION ; EAST ASIAN TELECONNECTION ; INTERANNUAL VARIABILITY ; SUBSURFACE TEMPERATURE ; SURFACE TEMPERATURE ; TIBETAN PLATEAU ; HEAT-SOURCES ; TRANSITION ; PRECIPITATION
收录类别	SCI
原文出处	10.1007/s00376-012-2040-9
语种	英语
WOS记录号	WOS:000312636500020
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16430]
专题	海洋研究所_海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Key Lab Ocean Circulat & Wave, Qingdao 266071, Peoples R China 3.Nanjing Univ Informat Sci & Technol, Appl Hydrometeorol Res Inst, Nanjing 210044, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Feng Junqiao,Hu Dunxin,Yu Lejiang. Role of Western Pacific Oceanic variability in the onset of the Bay of Bengal summer monsoon[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2013,30(1):219-234.
APA	Feng Junqiao,Hu Dunxin,&Yu Lejiang.(2013).Role of Western Pacific Oceanic variability in the onset of the Bay of Bengal summer monsoon.ADVANCES IN ATMOSPHERIC SCIENCES,30(1),219-234.
MLA	Feng Junqiao,et al."Role of Western Pacific Oceanic variability in the onset of the Bay of Bengal summer monsoon".ADVANCES IN ATMOSPHERIC SCIENCES 30.1(2013):219-234.