Intraseasonal Variability of Surface Circulation in the Indo-Pacific Warm Pool Induced by Summer Monsoon Intraseasonal Oscillations

doi:10.1029/2022JC018843

IOCAS-IR > 海洋环流与波动重点实验室

	Intraseasonal Variability of Surface Circulation in the Indo-Pacific Warm Pool Induced by Summer Monsoon Intraseasonal Oscillations
	Song, Lina1,2,3 ; Wang, Fan1,2,3 ; Li, Yuanlong 1,2,3; Lee, June-Yi 4,5
	2022-11-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	127 期号:11 页码:16
通讯作者	Wang, Fan(fwang@qdio.ac.cn)
摘要	The Indian summer monsoon intraseasonal oscillation (MISO) is the most influential mode of tropical atmospheric intraseasonal variability in boreal summer (May-October). This study investigates how the MISO drives the intraseasonal variability (ISV) of zonal currents (U) in the Indo-Pacific warm pool (IPWP) region. An analysis of satellite observations confirms a close association between U ISV and the MISO, with MISO-induced surface U anomalies reaching 16-19 cm s(-1) near the equator and 4-5 cm s(-1) in the Northern Hemisphere portion of the IPWP. These ISVs account for 15%-35% of the intensity changes in the major zonal currents. The spatial distribution of U ISV shows coherent enhancement and suppression of MISO convections with a lag of approximately 7 days as a delayed response to the tropical wind forcing. ISV anomalies show northward emanation following propagation of the MISO. Ocean model experiments confirm that large-scale ISV in surface U is primarily caused by the wind forcing of the MISO. Owing to the convergence/divergence of MISO-induced U ISV, significant warm water volume anomalies occur in the western-to-central equatorial Pacific.
关键词	Indian summer monsoon intraseasonal oscillation intraseasonal variability ocean surface circulation warm water volume
DOI	10.1029/2022JC018843
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42090040] ; Shandong Provincial Natural Science Foundation[ZR2020JQ17] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB42000000]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000878626500001
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：1[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/337002/180426
专题	海洋环流与波动重点实验室
通讯作者	Wang, Fan
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Ocean Dynam & Climate, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 4.Pusan Natl Univ, Res Ctr Climate Sci, Busan, South Korea 5.Inst Basic Sci, Ctr Climate Phys, Busan, South Korea
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Song, Lina,Wang, Fan,Li, Yuanlong,et al. Intraseasonal Variability of Surface Circulation in the Indo-Pacific Warm Pool Induced by Summer Monsoon Intraseasonal Oscillations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2022,127(11):16.
APA	Song, Lina,Wang, Fan,Li, Yuanlong,&Lee, June-Yi.(2022).Intraseasonal Variability of Surface Circulation in the Indo-Pacific Warm Pool Induced by Summer Monsoon Intraseasonal Oscillations.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,127(11),16.
MLA	Song, Lina,et al."Intraseasonal Variability of Surface Circulation in the Indo-Pacific Warm Pool Induced by Summer Monsoon Intraseasonal Oscillations".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 127.11(2022):16.

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