一种区域潜水蒸发系数分区计算方法
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEFEI UNIV OF TECH
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to accurately calculate the groundwater evaporation coefficient over large-scale regions. They neglect the spatial heterogeneity of factors such as groundwater depth, meteorological conditions, vadose zone lithology, and land use types, resulting in significant discrepancies between the calculated results and actual conditions. Furthermore, inconsistent dimensions of multi-source data lead to weighting distortions.
The weights of each factor are determined by a multiple linear regression model. Multi-source data are converted into dimensionless rank values by spatial difference and reclassification. Four-factor raster file spatial weighting is performed and combined with a family of quadratic curves to assign absolute values, eliminate dimensional differences, and scientifically quantify the contribution of each factor.
It significantly improves the accuracy and objectivity of calculating the groundwater evaporation coefficient in large-scale regions, achieves high-precision spatial zoning, overcomes the weighting distortion problem caused by inconsistent dimensions, and ensures the reliability of the calculation results.
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Figure CN122196329B_ABST