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

CORC > 海洋研究所 > 中国科学院海洋研究所

	Principal-component estimates of the Kuroshio Current axis and path based on the mathematical verification between satellite altimeter and drifting buoy data
	Zhuang, Zhanpeng 2,3; Hui, Zhenli 2,3; Yang, Guangbing 2,3; Zhao, Xinhua 1; Yuan, Yeli 2,3
刊名	ACTA OCEANOLOGICA SINICA
	2020
卷号	39 期号:1 页码:14-24
关键词	Kuroshio axis detection Kuroshio path detection mathematical verification satellite absolute geostrophic velocity principal-component detection
ISSN号	0253-505X
DOI	10.1007/s13131-019-1523-2
通讯作者	Zhuang, Zhanpeng(zhuangzp@fio.org.cn)
英文摘要	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.
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
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000519120000002
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/165852]
专题	中国科学院海洋研究所
通讯作者	Zhuang, Zhanpeng
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao 266237, Peoples R China 3.Minist Nat Resources, Inst Oceanog 1, Qingdao 266100, 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.