一种模型耦合的湖区水位预测方法、介质及计算机设备

By employing a model coupling method in lake level prediction, and utilizing the dynamic coupling of neural networks and two-dimensional hydrodynamic models, the problems of downstream boundary condition updates and rigid representative point configurations are solved, achieving high-precision and flexible lake level prediction that can adapt to extreme events and changes in boundary conditions.

CN122113696BActive Publication Date: 2026-07-17CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Filing Date
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for predicting water levels in lake areas suffer from problems such as the inability to dynamically update downstream boundary conditions, lack of a measured data feedback mechanism, redundant output dimensions, and rigid configuration of representative points, leading to the accumulation of simulation errors, insufficient prediction accuracy, and insufficient flexibility.

Method used

A model coupling method is adopted, which establishes a water level prediction neural network model in the PyTorch framework and couples it with a two-dimensional mathematical hydrodynamic model. The downstream boundary conditions are dynamically updated using real-time upstream water level data. Numerical simulation is carried out in combination with shallow water equations, and a lightweight neural network model is established for key points to predict water levels.

Benefits of technology

It achieves physical consistency and real-time correction of lake water level prediction, reduces computational redundancy and overfitting risk, improves the prediction accuracy and flexibility of key points, and adapts to extreme events and sudden changes in boundary conditions.

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Abstract

本发明涉及洪涝灾害预报技术领域,公开一种模型耦合的湖区水位预测方法、介质及计算机设备。预测方法包括建立二维数学水动力模型得到最优水位预报神经网络模型;获取上游水位实际测量值;将预测的下游水位预测值作为二维数学水动力模型的下游边界值,上游边界值采用上游水位实际测量值;运行二维数学水动力模型,输出符合物理规律的水位数据;对湖区内预报站点分别建立神经网络模型,实现基于物理一致标签的点位水位预测;进行动态更新输出水位预报值。效果是:保持物理一致性,提升预报结果的物理可信度;下游边界条件随实时水文响应动态更新,适用于湖区水位预测场景;解耦高维场模拟与低维关键点预测,提升预测精度。
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