Application of Three Deep Learning Schemes Into Oceanic Eddy Detection

Recent years have witnessed the increase in applications of artificial intelligence (AI) into the detection of oceanic features. Oceanic eddies, ubiquitous in the global ocean, are important in the transport of materials and energy. A series of eddy detection schemes based on oceanic dynamics have b...

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Vydané v:Frontiers in Marine Science Ročník 8
Hlavní autori: Xu, Guangjun, Xie, Wenhong, Dong, Changming, Gao, Xiaoqian
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Lausanne Frontiers Research Foundation 15.06.2021
Frontiers Media S.A
Predmet:
Algorithms
Artificial intelligence
BiSeNet
Datasets
Deep learning
DeepLabV3
Detection
Eddies
Methods
Ocean circulation
Oceanic eddies
oceanic eddy detection
PSPNet
Segmentation
Semantics
Velocity
ISSN:2296-7745, 2296-7745
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Shrnutí:Recent years have witnessed the increase in applications of artificial intelligence (AI) into the detection of oceanic features. Oceanic eddies, ubiquitous in the global ocean, are important in the transport of materials and energy. A series of eddy detection schemes based on oceanic dynamics have been developed while the AI-based eddy identification scheme starts to be reported in literature. In the present study, to find out applicable AI-based schemes in eddy detection, three AI-based algorithms are employed in eddy detection, including the pyramid scene parsing network (PSPNet) algorithm, the DeepLabV3+ algorithm and the bilateral segmentation network (BiSeNet) algorithm. To justify the AI-based eddy detection schemes, the results are compared with one dynamic-based eddy detection method. It is found that more eddies are identified using the three AI-based methods. The three methods’ results are compared in terms of the numbers, sizes and lifetimes of detected eddies. In terms of eddy numbers, the PSPNet algorithm identifies the largest number of ocean eddies among the three AI-based methods. In terms of eddy sizes, the BiSeNet can find more large-scale eddies than the two other methods, because the Spatial Path is introduced into the algorithm to avoid destroying the eddy edge information. Regarding eddy lifetimes, the DeepLabV3+ cannot track longer lifetimes of ocean eddies.
Bibliografia:ObjectType-Article-1
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content type line 14
ISSN:2296-7745
2296-7745
DOI:10.3389/fmars.2021.672334