气候变化领域集成服务门户(CCPortal): An interdecadal extension of the Indo-Pacific warm pool and its strengthened influence on the South China Sea summer monsoon since the late 1980s

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DOI	10.1088/1748-9326/ab8588
	An interdecadal extension of the Indo-Pacific warm pool and its strengthened influence on the South China Sea summer monsoon since the late 1980s
	Yin X.; Huangfu J.; Zhou L.-T.
发表日期	2020
ISSN	17489318
卷号	15 期号:6
英文摘要	In this study, the interdecadal change in the size of the Indo-Pacific warm pool (IPWP) and its connection with the intensity of the South China Sea summer monsoon (SCSSM) in May are investigated. The results show that the size of the IPWP experienced a marked interdecadal extension in the late 1980s, and its impacts on the SCSSM have also strengthened. Further analyses indicate that interdecadal changes in the connection between the IPWP and SCSSM variations are related to the changes in the atmospheric circulation anomalies over the tropical western Pacific due to the size of the IPWP. During 1951-1986, the IPWP was smaller than the climatologic size, which led to suppressed convection over the tropical western Pacific and easterly anomalies north of the equator. The Philippines and South China Sea (SCS) region was controlled by anomalous anticyclonic circulation, which was not conducive to the formation and development of the SCSSM. In contrast, during 1987-2018, the IPWP expanded significantly eastward. As a response to the IPWP size extension, convective activities were enhanced over the tropical western Pacific. Anomalous cyclonic circulation was located over the Philippines and SCS regions, which favored the enhancement of the SCSSM through wide westerly flow in the Bay of Bengal and tropical western Pacific. Moreover, it is shown that the interdecadally enhanced intraseasonal oscillations (ISOs) over the tropical western Pacific in the late 1980s also favored reinforcement of the SCSSM intensity. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	Indo-Pacific warm pool; interdecadal shift; intraseasonal oscillation; South China Sea summer monsoon
语种	英语
scopus关键词	Atmospheric thermodynamics; Tropics; Anticyclonic circulation; Atmospheric circulation anomaly; Convective activity; Cyclonic circulation; Interdecadal changes; Intraseasonal oscillations; South China Sea summer monsoon; Tropical Western Pacific; Tropical engineering; air-sea interaction; anticyclone; atmospheric circulation; atmospheric convection; decadal variation; easterly wave; monsoon; summer; warm pool; westerly; Bay of Bengal; Indian Ocean; Pacific Ocean; Pacific Ocean (West); South China Sea
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153992
作者单位	Center for Monsoon System Research, Institute of Atmospheric Physics, Chinese Academy of Sciences, P.O. Box 2718, Beijing, 100190, China
推荐引用方式 GB/T 7714	Yin X.,Huangfu J.,Zhou L.-T.. An interdecadal extension of the Indo-Pacific warm pool and its strengthened influence on the South China Sea summer monsoon since the late 1980s[J],2020,15(6).
APA	Yin X.,Huangfu J.,&Zhou L.-T..(2020).An interdecadal extension of the Indo-Pacific warm pool and its strengthened influence on the South China Sea summer monsoon since the late 1980s.Environmental Research Letters,15(6).
MLA	Yin X.,et al."An interdecadal extension of the Indo-Pacific warm pool and its strengthened influence on the South China Sea summer monsoon since the late 1980s".Environmental Research Letters 15.6(2020).