River section form adjustment mode discrimination method and system based on centroid coordinate relative amplitude variation

By identifying the adjustment pattern of river section morphology based on the relative amplitude of centroid coordinates, the problem that traditional methods are difficult to characterize the coordinated changes of sections is solved, and the quantitative judgment and scientific understanding of river morphology adjustment are achieved.

CN120804773APending Publication Date: 2025-10-17WUHAN UNIV
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Patent Information

Application Number
CN202510821091.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

Traditional river section morphology adjustment analysis methods are difficult to simultaneously characterize the coordinated change characteristics of cross-section lateral deviation and vertical scouring and deposition. They lack unified quantitative judgment standards and cannot effectively identify the differences in morphological adjustments of different river section sections.

Method used

A method for distinguishing the river section morphology adjustment mode based on the relative amplitude of the centroid coordinates is adopted. By calculating the abscissa and ordinate of the centroid under the flat water level and combining the relative amplitude, the river section morphology adjustment is divided into six modes: quasi-balanced type, overall downcut type, overall sedimentation type, translation downcut type, translation sedimentation type and translation adjustment type.

Benefits of technology

It has achieved quantitative representation and clear identification of the multi-dimensional changes in river cross-sectional morphology adjustments, expanded scientific understanding of the laws of cross-sectional morphology adjustments, and provided theoretical support for river management and ecological restoration.

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Abstract

The invention provides a river section form adjustment mode judgment method and system based on centroid coordinate relative amplitude variation, and the method comprises the following steps: 1, calculating centroid horizontal coordinates and centroid vertical coordinates under a flat beach water level based on the fixed section topographic data of a target river reach; 2, calculating the relative amplitude of the centroid horizontal coordinate relative to the flat beach river width and the centroid vertical coordinate relative to the flat beach water depth in each year; and step 3, judging the river section form adjustment mode based on the relative amplitude of the centroid horizontal coordinate relative to the flat beach river width and the centroid vertical coordinate relative to the flat beach water depth. According to the method, the adjustment difference of different river channel section forms can be more effectively identified, and the scientific cognition on the section form adjustment rule is expanded.
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