测绘科学技术学报2025，Vol.41Issue(1)：74-79,6.DOI:10.3969/j.issn.1673-6338.2025.01.011
一种基于多段迭代策略的流量阈值分析方法
A Flow Threshold Analysis Method Based on Multi-stage Iterative Strategy
摘要
Abstract
Aiming at the problem of determining the optimal flow threshold in the process of extracting gully net-work from the surface runoff flooding model,a flow threshold analysis method based on multi-stage iterative strate-gy is proposed and implemented in this paper.The results show that compared with the traditional mean change point method,the algorithm model,improved by multi-stage iteration strategy,adopts the variable step length method to simplify the inflection point calculation process,and reduces the calculation of invalid data in this process,and greatly improves the efficiency of the optimal flow threshold calculation.关键词
沟谷网络/最优汇流累积阈值/均值变点法/多段迭代策略/流量阈值Key words
gully network/optimal confluence cumulative threshold/mean change point method/multi-stage itera-tion strategy/flow threshold分类
天文与地球科学引用本文复制引用
刘宏建,杨富琨,刘斌,王位..一种基于多段迭代策略的流量阈值分析方法[J].测绘科学技术学报,2025,41(1):74-79,6.基金项目
国家自然科学基金项目(41471337 （）
42201491). （）
