Intraseasonal variability of the Kuroshio observed via mooring at 18°N

doi:10.1007/s00343-023-2334-z

IOCAS-IR > 海洋环流与波动重点实验室

	Intraseasonal variability of the Kuroshio observed via mooring at 18°N
	Yuan, Xin1,2 ; Wang, Qingye 1,3,4; Ma, Jie 1,3,4; Hu, Shijian 1,3,4; Hu, Dunxin 1,3,4
	2024-03-14
发表期刊	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	2096-5508
页码	16
通讯作者	Wang, Qingye(wangqy@qdio.ac.cn) ; Hu, Dunxin(dxhu@qdio.ac.cn)
摘要	Insufficient observations near the origin of the Kuroshio have led to incomplete understanding of the intraseasonal variability (ISV) of the Kuroshio. Direct measurements of the Kuroshio velocity were performed with an array of three profiler moorings (122.7 degrees E, 123 degrees E, and 123.3 degrees E) along 18 degrees N from January 2018 to February 2020. The ISV of the Kuroshio at 18 degrees N was investigated based on a combination of mooring observations and global high-resolution HYbrid Coordinate Ocean Model reanalysis data. The estimated time-averaged transport in the upper 350 m across the observation transect was 6.5 +/- 2.6 Sv (1.0 Sv=106 m3/s). Two significant ISV peaks at 50-60 and similar to 100 d were recognized in the power spectra of the meridional velocity and transport. Further analysis indicated that the ISV at 50-60 d was caused by westward-propagating eddies at average propagation speed of similar to 13 cm/s and wavelength of similar to 635 km. Another ISV peak at similar to 100 d was mainly caused by northward-propagating eddies generated in the North Equatorial Current region. Further investigation indicated that the ISV of the Kuroshio at 18 degrees N is dominated by meridional transport, rather than by the zonal migration of the Kuroshio main axis. Our findings provide a better understanding of the ISV of the Kuroshio east of Luzon Island.
关键词	intraseasonal variability (ISV) Kuroshio mooring observation eddy
DOI	10.1007/s00343-023-2334-z
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41976011] ; National Natural Science Foundation of China[42022040] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42010102] ; Shandong Provincial Natural Science Foundation[ZR2020JQ18] ; CAS Interdisciplinary Innovation Team[JCTD-2020-12]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:001184589000001
出版者	SCIENCE PRESS
WOS关键词	PACIFIC SUBTROPICAL COUNTERCURRENT ; NORTH PACIFIC ; MESOSCALE EDDIES ; TRANSPORT SOUTH ; LUZON STRAIT ; EAST ; TAIWAN ; MODULATION ; EVOLUTION ; WATER
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/184888
专题	海洋环流与波动重点实验室
通讯作者	Wang, Qingye; Hu, Dunxin
作者单位	1.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Laoshan Lab, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
第一作者单位	海洋环流与波动重点实验室
通讯作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Yuan, Xin,Wang, Qingye,Ma, Jie,et al. Intraseasonal variability of the Kuroshio observed via mooring at 18°N[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2024:16.
APA	Yuan, Xin,Wang, Qingye,Ma, Jie,Hu, Shijian,&Hu, Dunxin.(2024).Intraseasonal variability of the Kuroshio observed via mooring at 18°N.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,16.
MLA	Yuan, Xin,et al."Intraseasonal variability of the Kuroshio observed via mooring at 18°N".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2024):16.