A groundwater level reasonable health value evaluation method based on multi-source data fusion and dynamic threshold

By constructing a dynamic threshold range in groundwater level assessment and combining multi-source data to identify water level turning points and trends, the problem of difficulty in capturing the dynamic fluctuation characteristics of groundwater level in traditional methods is solved, and a more accurate health status assessment is achieved.

CN122264309APending Publication Date: 2026-06-23HEBEI WATER CONSERVANCY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI WATER CONSERVANCY RES INST
Filing Date
2026-04-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional methods for evaluating the reasonable health value of groundwater level use fixed thresholds and static benchmarks, which make it difficult to capture the dynamic fluctuation characteristics of groundwater level. This leads to delayed identification or misjudgment of abnormal states, especially in scenarios with high frequency of water level changes, diverse influencing factors, or higher requirements for monitoring accuracy, resulting in distorted evaluation results.

Method used

By acquiring data on water level, rainfall, water intake, and reinjection flow from monitoring wells, we can identify water level inflection points, divide the change stages, construct dynamic threshold intervals, build trend response relationships by combining multi-source data, dynamically label water level change types, extract key water level values ​​to form elastic threshold intervals with time series characteristics, and continuously judge water level status changes based on these intervals.

Benefits of technology

It enhances the identification of groundwater status trends and range location in time and space, improves anomaly identification capabilities, and enhances the real-time nature and relevance of evaluation results.

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Abstract

This invention relates to the fields of hydrogeology and water resources management, specifically to a method for evaluating the reasonable health value of groundwater levels based on multi-source data fusion and dynamic thresholds. The method includes the following steps: acquiring monitoring well water levels and multi-source data; dividing water level change periods; identifying trend response relationships and labeling their types; extracting key water levels to generate dynamic thresholds; determining the state and direction of water level shifts; locating abnormal periods and spatial locations; and obtaining a set of groundwater level health value evaluation results. In this invention, change stages are divided by water level inflection points; trend response relationships are constructed by combining multi-source data on rainfall, water intake, recharge, and surface water levels; water level change types are dynamically labeled; key water level values ​​are extracted to form elastic threshold intervals with time-series characteristics; and water level state changes are continuously judged based on these intervals to identify the shift direction and duration. This completes the trend identification and range positioning of groundwater status in both time and space, enhancing the data-driven anomaly identification capability.
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