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	Enhancing the accuracy of automatic eddy detection and the capability of recognizing the multi-core structures from maps of sea level anomaly
	Yi J. ; Du Y. ; He Z. ; Zhou C.
	2014
关键词	south china sea anticyclonic eddies mesoscale eddies luzon strait vortices kuroshio quantification identification circulation dynamics
英文摘要	Automated methods are important for automatically detecting mesoscale eddies in large volumes of altimeter data. While many algorithms have been proposed in the past, this paper presents a new method, called hybrid detection (HD), to enhance the eddy detection accuracy and the capability of recognizing eddy multi-core structures from maps of sea level anomaly (SLA). The HD method has integrated the criteria of the Okubo-Weiss (OW) method and the sea surface height-based (SSH-based) method, two commonly used eddy detection algorithms. Evaluation of the detection accuracy shows that the successful detection rate of HD is similar to 96.6% and the excessive detection rate is similar to 14.2%, which outperforms the OW and those methods using SLA extrema to identify eddies. The capability of recognizing multi-core structures and its significance in tracking eddy splitting or merging events have been illustrated by comparing with the detection results of different algorithms and observations in previous literature.
出处	Ocean Science
卷	10
期	1
页	39-48
收录类别	SCI
语种	英语
ISSN号	1812-0784
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/29448]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Yi J.,Du Y.,He Z.,et al. Enhancing the accuracy of automatic eddy detection and the capability of recognizing the multi-core structures from maps of sea level anomaly. 2014.

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