一种基于分割基流的流域汇流单位线推求方法
By using a segmentation-based basis flow method and optimizing the unit line using the Thiessen polygon method and ant colony algorithm, the inefficiency problem of traditional methods is solved, achieving a more efficient and stable unit line derivation and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HOHAI UNIV
- Filing Date
- 2023-07-26
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional methods for estimating unit hydrographs in watersheds are difficult to use, inefficient, and prone to jagged or negative values, making them unsuitable for widespread application.
A segmented baseflow-based method was adopted, which selected the catchment area stations using the Thiessen polygon method, obtained the surface average precipitation sequence using the cumulative interpolation method, interpolated the baseflow process using a straight line, set the initial value of the triangular unit line, and performed local optimization using the ant colony algorithm to improve the accuracy and stability of the unit line.
It improves the efficiency and accuracy of unit line estimation, resulting in more stable and reliable unit lines, simplifies the operation process, and reduces reliance on the experience of forecasters.
Smart Images
Figure CN117033888B_ABST
Abstract
Citation Information
Patent Citations
Estimation method of average response time of basin underground water based on instantaneous unit hydrograph
CN108018823A
A watershed runoff concentration simulation method based on multi-stage partition and multi-unit line selection
CN109033605A