Marine mesoscale vortex identification method and device

By comprehensively utilizing the data of a variety of marine environment numerical forecast products, using multiple vortex recognition algorithms and cluster analysis, we can identify and characterize various feature information of mesoscale vortexes, solving the problem of difficult to quickly and accurately identify mesoscale vortexes in the prior art, and achieving efficient and comprehensive identification and characterization of vortex feature information.

CN119939275APending Publication Date: 2025-05-06CSSC SYST ENG RES INST
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Patent Information

Application Number
CN202411946921.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-05-06

AI Technical Summary

Technical Problem

The prior art is difficult to quickly and accurately identify and extract the characteristic information of mesoscale vortexes from massive marine environmental data. Traditional manual identification is time-consuming and labor-intensive, and automatic identification methods are difficult to comprehensively and accurately characterize the complex characteristics of vortexes.

Method used

By comprehensively utilizing the input data of a variety of marine environment numerical forecast products, a variety of pre-set vortex recognition algorithms (such as Okubo-Weiss parameter method, vector geometry method, rotation invariance method and SSH contour method) are used, and multiple feature information of mesoscale vortex are identified and characterized through clustering analysis and feature extraction.

Benefits of technology

It realizes rapid and accurate identification of various characteristic information such as mesoscale vortex position, influence depth, range radius, movement speed, intensity, etc., overcomes the limitations of a single method, improves the accuracy and comprehensiveness of the identification, and provides strong technical support for marine scientific research.

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Abstract

The invention provides an ocean mesoscale vortex identification method and device, and the method comprises the steps: obtaining the input data of an ocean environment numerical forecasting product, and the input data at least comprise the sea surface height abnormality, the horizontal flow velocity field, the temperature and the salinity; preprocessing the input data to obtain processed marine environment data; recognizing vortexes in the processed marine environment data according to a plurality of preset vortex recognition algorithms to obtain a plurality of vortexes; wherein the preset multiple vortex recognition algorithms at least comprise an Okubo-Wei ss parameter method, a vector geometry method, a rotation invariance method and an SSH isoline method; performing clustering analysis according to the vortex centers of the plurality of vortexes to obtain a target vortex corresponding to the input data; performing feature extraction on the target vortex to obtain feature parameters corresponding to the target vortex; and the feature parameters are displayed according to a preset display mode, so that the recognition accuracy and comprehensiveness are improved.
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