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

文献类型：期刊论文

作者Feng, Junqiao1,4,5; Wang, Fujun1,4,5; Yu, Lejiang2,3; Wang, Qingye1,4,5; Hu, Dunxin1,4,5
刊名INTERNATIONAL JOURNAL OF CLIMATOLOGY
出版日期2020-12-01
页码19
ISSN号0899-8418
关键词South China sea summer monsoon tropical Indian Ocean tropical Pacific Ocean upper ocean heat content
DOI10.1002/joc.6943
通讯作者Feng, Junqiao(fengjunqiao@qdio.ac.cn) ; Yu, Lejiang(yulejiang@sina.com.cn)
英文摘要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.
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
语种英语
出版者WILEY
WOS记录号WOS:000594644700001
源URL[http://ir.qdio.ac.cn/handle/337002/169297]  
专题海洋研究所_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.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
3.Polar Res Inst China, MNR Key Lab Polar Sci, Shanghai, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China
5.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Ocean Dynam & Climate, Qingdao, Peoples R China
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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来源：海洋研究所

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