Features of Intraseasonal Variability Observed in the Upper-Layer Current in the Northern South China Sea

doi:10.3389/fmars.2021.777262

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 海洋环流观测与数值模拟研究室

	Features of Intraseasonal Variability Observed in the Upper-Layer Current in the Northern South China Sea
	Xu, Wen 2,5; Shu, Yeqiang 1,5; Wang, Dongxiao 3; Chen, Ju 1,5; Wang, Jinghong 2,5; Xie, Qiang 4; Wang, Qiang 1,5; Liu, Danian 5; Zu, Tingting 1,5; He, Yunkai 5
刊名	FRONTIERS IN MARINE SCIENCE
	2021-12-10
卷号	8 页码:13
关键词	intraseasonal variability two frequency bands northern South China Sea upper-layer circulation mesoscale eddies
DOI	10.3389/fmars.2021.777262
通讯作者	Shu, Yeqiang
英文摘要	This study reveals the features of the strong intraseasonal variability (ISV) of the upper-layer current in the northern South China Sea (NSCS) based on four long-time mooring observations and altimeter data. The ISV of the upper-layer current in the NSCS consists of two dominant periods of 10-65 days and 65-110 days. The ISV with period of 10-65 days is much strong in the Luzon Strait and decays rapidly westward along the slope. The ISV with the period of 65-110 days is relatively strong along the slope with two high cores at 115 and 119 degrees E, whereas it is weak in the Luzon Strait. The 10-65-day ISV can propagate directly from the western Pacific into the NSCS for most of the time. However, due to its long wavelength, the 65-110-day ISV propagates into the NSCS indirectly, possibly similar to the wave diffraction phenomenon. The spatial differences between the two main frequency bands are primarily due to the baroclinic and barotropic instabilities. The spatial distribution of the upper-layer ISV is closely associated with the mesoscale eddy radius of the NSCS. The eddy radius is directly proportional to the strength of 65-110-day ISV, but it is inversely proportional to the strength of 10-65-day ISV.
资助项目	National Natural Science Foundation of China[41776036] ; National Natural Science Foundation of China[41521005] ; National Natural Science Foundation of China[91958202] ; National Natural Science Foundation of China[42076019] ; National Natural Science Foundation of China[91858203] ; National Natural Science Foundation of China[41906017] ; National Natural Science Foundation of China[42076026] ; Chinese Academy of Sciences Foundation[CXJJ-19-C18] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0304] ; Open Project Program of State Key Laboratory of Tropical Oceanography[LTOZZ2001] ; Open Project Program of State Key Laboratory of Tropical Oceanography[LTOZZ2102]
WOS关键词	MESOSCALE EDDIES ; ANTICYCLONIC EDDY ; CIRCULATION ; RESOLUTION ; KUROSHIO ; MODEL
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000745290000001
资助机构	National Natural Science Foundation of China ; Chinese Academy of Sciences Foundation ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Open Project Program of State Key Laboratory of Tropical Oceanography
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/9353]
专题	深海科学研究部_海洋环流观测与数值模拟研究室
通讯作者	Shu, Yeqiang
作者单位	1.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Sun Yat Sen Univ, Sch Marine Sci, Guangzhou, Peoples R China 4.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China 5.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Peoples R China
推荐引用方式 GB/T 7714	Xu, Wen,Shu, Yeqiang,Wang, Dongxiao,et al. Features of Intraseasonal Variability Observed in the Upper-Layer Current in the Northern South China Sea[J]. FRONTIERS IN MARINE SCIENCE,2021,8:13.
APA	Xu, Wen.,Shu, Yeqiang.,Wang, Dongxiao.,Chen, Ju.,Wang, Jinghong.,...&He, Yunkai.(2021).Features of Intraseasonal Variability Observed in the Upper-Layer Current in the Northern South China Sea.FRONTIERS IN MARINE SCIENCE,8,13.
MLA	Xu, Wen,et al."Features of Intraseasonal Variability Observed in the Upper-Layer Current in the Northern South China Sea".FRONTIERS IN MARINE SCIENCE 8(2021):13.