一种基于TOPMODEL模型求解流域蓄水容量分布的方法

摘要

Combining with the definition of water storage capacity,a method for calculating water storage capacity of a grid element in conceptual distributed hydrological model is constructed based on TOPMODEL model,and then the distribution curve of water storage capacity is obtained.Taking Dongwan Basin as study object,the distribution curve of water storage capacity is calculated.The calculated curve is compared with traditional water storage capacity distribution curve and the rationality is verified by flood simulation analysis.The results show that the method can be used to calculate the water storage capacity distribution of watershed,which provides a solution for the parameters of conceptual distributed hydrological model.%结合蓄水容量定义,以TOPMODEL模型为基础,构建了一种概念性分布式水文模型中网格单元的蓄水容量计算方法,得到相应的流域蓄水容量分布曲线.选取东湾流域为研究对象,计算流域蓄水容量分布曲线,与传统的流域蓄水容量分布曲线进行比较,并通过洪水模拟分析验证了该方法的合理性.结果表明,该方法可用于流域蓄水容量分布的求解,并为概念性分布式水文模型参数求解提供了思路.