Revisiting the relationship between Indo-Pacific heat content and South China Sea summer monsoon onset during 1980-2020

doi:10.1002/joc.6943

IOCAS-IR > 海洋环流与波动重点实验室

	Revisiting the relationship between Indo-Pacific heat content and South China Sea summer monsoon onset during 1980-2020
	Feng, Junqiao 1,2,3; Wang, Fujun 1,2,3; Yu, Lejiang 4,5; Wang, Qingye 1,2,3; Hu, Dunxin 1,2,3
	2020-12-01
发表期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
页码	19
通讯作者	Feng, Junqiao(fengjunqiao@qdio.ac.cn) ; Yu, Lejiang(yulejiang@sina.com.cn)
摘要	The relationship of the tropical Indo-Pacific upper ocean heat content (HC) and the South China Sea (SCS) summer monsoon (SCSSM) onset during 1980-2020 was investigated. It was found that when HC anomalies in the preceding winter-spring are positive (negative) in the eastern Indian-western Pacific Ocean or negative (positive) in the southwestern Indian Ocean and eastern Pacific Ocean, SCSSM onset is usually early (late). Empirical orthogonal function (EOF) analysis suggested that the primary EOF modes of HC anomaly in both tropical Pacific and Indian Oceans are associated with El Nino-Southern Oscillation (ENSO). It is through modulating the westerly over the north Indian Ocean-SCS and the western north Pacific subtropical high (WNPSH) via the Walker circulation over the Indo-Pacific basin, monsoon circulation in the Indian Ocean that the ENSO related Indo-Pacific HC variation connects with the SCSSM onset. Both the second EOF modes for the tropical Pacific and Indian Ocean also show significant correlations with the SCSSM onset. The former related vertical motion over the SCS-far northwestern Pacific can influence the WNPSH and convection, thus occurrence of the SCSSM. The latter represents the intrinsic Indian Ocean HC variability; the air temperature variation associated with it can modulate the atmospheric circulation in the Indian Ocean-SCS through thermal wind balance, and thus the SCSSM onset by acting on the westerly over the SCS and the WNPSH. A western Pacific index and an Indian Ocean dipole index were defined to represent the leading HC modes in the tropical Pacific and Indian Ocean, respectively. A binary linear regression model was constructed using these two indices to improve SCSSM onset prediction.
关键词	South China sea summer monsoon tropical Indian Ocean tropical Pacific Ocean upper ocean heat content
DOI	10.1002/joc.6943
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41476017] ; National Natural Science Foundation of China[41976011] ; National Natural Science Foundation of China[41976027]
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000594644700001
出版者	WILEY
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/169298
专题	海洋环流与波动重点实验室
通讯作者	Feng, Junqiao; Yu, Lejiang
作者单位	1.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Ocean Dynam & Climate, Qingdao, Peoples R China 4.Polar Res Inst China, MNR Key Lab Polar Sci, Shanghai, Peoples R China 5.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
第一作者单位	海洋环流与波动重点实验室; 中国科学院海洋大科学研究中心
通讯作者单位	海洋环流与波动重点实验室; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Feng, Junqiao,Wang, Fujun,Yu, Lejiang,et al. Revisiting the relationship between Indo-Pacific heat content and South China Sea summer monsoon onset during 1980-2020[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2020:19.
APA	Feng, Junqiao,Wang, Fujun,Yu, Lejiang,Wang, Qingye,&Hu, Dunxin.(2020).Revisiting the relationship between Indo-Pacific heat content and South China Sea summer monsoon onset during 1980-2020.INTERNATIONAL JOURNAL OF CLIMATOLOGY,19.
MLA	Feng, Junqiao,et al."Revisiting the relationship between Indo-Pacific heat content and South China Sea summer monsoon onset during 1980-2020".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2020):19.

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