IOCAS-IR
Principal-component estimates of the Kuroshio Current axis and path based on the mathematical verification between satellite altimeter and drifting buoy data
Zhuang, Zhanpeng1,2; Hui, Zhenli1,2; Yang, Guangbing1,2; Zhao, Xinhua3; Yuan, Yeli1,2
2020
Source PublicationACTA OCEANOLOGICA SINICA
ISSN0253-505X
Volume39Issue:1Pages:14-24
Corresponding AuthorZhuang, Zhanpeng(zhuangzp@fio.org.cn)
AbstractWe 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.
KeywordKuroshio axis detection Kuroshio path detection mathematical verification satellite absolute geostrophic velocity principal-component detection
DOI10.1007/s13131-019-1523-2
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000519120000002
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/165853
Collection中国科学院海洋研究所
Corresponding AuthorZhuang, Zhanpeng
Affiliation1.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
Recommended Citation
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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