Principal-component estimates of the Kuroshio Current axis and path based on the mathematical verification between satellite altimeter and drifting buoy data

doi:10.1007/s13131-019-1523-2

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	Principal-component estimates of the Kuroshio Current axis and path based on the mathematical verification between satellite altimeter and drifting buoy data
	Zhuang, Zhanpeng 1,2; Hui, Zhenli1,2 ; Yang, Guangbing 1,2; Zhao, Xinhua 3; Yuan, Yeli 1,2
	2020
发表期刊	ACTA OCEANOLOGICA SINICA
ISSN	0253-505X
卷号	39 期号:1 页码:14-24
通讯作者	Zhuang, Zhanpeng(zhuangzp@fio.org.cn)
摘要	We used satellite altimetry data to investigate the Kuroshio Current because of the higher resolution and wider range of observations. In previous studies, satellite absolute geostrophic velocities were used to study the spatiotemporal variability of the sea surface velocity field along the current, and extraction methods were employed to detect the Kuroshio axes and paths. However, sea surface absolute geostrophic velocity estimated from absolute dynamic topography should be regarded as the geostrophic component of the actual surface velocity, which cannot represent a sea surface current accurately. In this study, mathematical verification between the climatic absolute geostrophic and bin-averaged drifting buoy velocity was established and then adopted to correct the satellite absolute geostrophic velocities. There were some differences in the characteristics between satellite geostrophic and drifting buoy velocities. As a result, the corrected satellite absolute geostrophic velocities were used to detect the Kuroshio axis and path based on a principal-component detection scheme. The results showed that the detection of the Kuroshio axes and paths from corrected absolute geostrophic velocities performed better than those from satellite absolute geostrophic velocities and surface current estimations. The corrected satellite absolute geostrophic velocity may therefore contribute to more precise day-to-day detection of the Kuroshio Current axis and path.
关键词	Kuroshio axis detection Kuroshio path detection mathematical verification satellite absolute geostrophic velocity principal-component detection
DOI	10.1007/s13131-019-1523-2
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project of the Ministry of Science and Technology of China[2018YFF01014100] ; National Programme on Global Change and Air-Sea Interaction[GASI-IPOVAI-01-05] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1606405]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000519120000002
出版者	SPRINGER
引用统计	被引频次：2[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/337002/165853
专题	中国科学院海洋研究所
通讯作者	Zhuang, Zhanpeng
作者单位	1.Minist Nat Resources, Inst Oceanog 1, Qingdao 266100, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Zhuang, Zhanpeng,Hui, Zhenli,Yang, Guangbing,et al. Principal-component estimates of the Kuroshio Current axis and path based on the mathematical verification between satellite altimeter and drifting buoy data[J]. ACTA OCEANOLOGICA SINICA,2020,39(1):14-24.
APA	Zhuang, Zhanpeng,Hui, Zhenli,Yang, Guangbing,Zhao, Xinhua,&Yuan, Yeli.(2020).Principal-component estimates of the Kuroshio Current axis and path based on the mathematical verification between satellite altimeter and drifting buoy data.ACTA OCEANOLOGICA SINICA,39(1),14-24.
MLA	Zhuang, Zhanpeng,et al."Principal-component estimates of the Kuroshio Current axis and path based on the mathematical verification between satellite altimeter and drifting buoy data".ACTA OCEANOLOGICA SINICA 39.1(2020):14-24.

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