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Automatic detection of oceanic mesoscale eddies in the South China Sea
Xia Qiong1,2,3; Shen Hui1
2015-09-01
发表期刊CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
卷号33期号:5页码:1334-1348
文章类型Article
摘要This study focuses on the spatial and temporal distribution characteristics of mesoscale eddies in the South China Sea (SCS). An automatic eddy detection method, based on the geometry of velocity vectors, was adopted to obtain an eddy dataset from 21 years of satellite altimeter data. Analysis revealed that the number of anticyclonic eddies was nearly equal to cyclonic eddies; in the SCS, cyclonic eddies are generally stronger than anticyclonic eddies and anticyclonic eddies are larger and longer-lived than cyclonic eddies. Anticyclonic eddies tend to survive longer in the spring and summer, while cyclonic eddies have longer lifetimes in the autumn and winter. The characteristics and seasonal variations of eddies in the SCS are strongly related to variations in general ocean circulation, in the homogeneity of surface wind stress, and in the unevenness of bottom topography in the SCS. The spatial and temporal variation of mesoscale eddies in the SCS could, therefore, be an important index for understanding local hydrodynamics and regional climate change.
关键词South China Sea Mesoscale Eddies Eddy Detection Altimeter Statistics
DOI10.1007/s00343-015-4354-9
收录类别SCI
语种英语
WOS记录号WOS:000360846900023
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/337002/50643
专题海洋环流与波动重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing 210044, Jiangsu, Peoples R China
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GB/T 7714
Xia Qiong,Shen Hui. Automatic detection of oceanic mesoscale eddies in the South China Sea[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2015,33(5):1334-1348.
APA Xia Qiong,&Shen Hui.(2015).Automatic detection of oceanic mesoscale eddies in the South China Sea.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,33(5),1334-1348.
MLA Xia Qiong,et al."Automatic detection of oceanic mesoscale eddies in the South China Sea".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 33.5(2015):1334-1348.
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