多模型多边界河口盐水入侵集合概率预报方法及系统

By constructing an ensemble forecasting system using a multi-model, multi-boundary approach, the problem that existing saltwater intrusion forecasting methods cannot provide probabilistic information is solved, enabling probabilistic prediction of saltwater intrusion processes and improving the reliability of forecast results and risk identification capabilities.

CN122133569BActive Publication Date: 2026-07-17EAST CHINA NORMAL UNIV +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
EAST CHINA NORMAL UNIV
Filing Date
2026-05-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing saltwater intrusion forecasting methods are based on a single numerical model and deterministic initial boundary conditions, which makes it difficult to reflect the coupling effect of multiple dynamic factors and provide probabilistic information on saltwater intrusion. This limits the application of forecast results in risk assessment and engineering scheduling.

Method used

A multi-model, multi-boundary approach is adopted to construct an ensemble forecasting system by coupling multiple calibrated and validated numerical models with various runoff and wind field boundary conditions. This system generates saltwater intrusion evolution results under multiple forecast scenarios, calculates the comprehensive confidence probability based on historical simulation accuracy, constructs a joint probability distribution table, and outputs the probabilistic forecast results of saltwater intrusion.

Benefits of technology

This enables probabilistic prediction of saltwater intrusion processes, improves the reliability and completeness of forecast results, enhances the ability to identify risks of extreme events, and provides quantifiable technical support for estuarine water supply security and water resource management.

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Abstract

本发明提供了一种多模型多边界河口盐水入侵集合概率预报方法及系统,其中方法基于多个已率定验证的数值模型、多种径流边界及多种风场边界条件进行耦合,通过构建多源不确定性扰动的集合预报体系,生成多个预报情景下的盐水入侵演变结果。进一步基于历史观测数据与模型性能评估指标,建立数值模型、径流边界及风场边界的分项置信概率加权方法,实现集合预报结果的概率分布估计。该方法可定量表征水源地盐水入侵事件发生的概率及不确定性,提升河口盐水入侵预报的精度与可靠性。
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