利用Horton下渗曲线改进TOPMODEL模型的基流模拟  

A Modified TOPMODEL Based on Horton Infiltration Capacity Curve

作　　者：李超群[1] 郭生练[1] 张俊[1] 林凯荣[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水文》2009年第1期4-7,20,共5页Journal of China Hydrology

基　　金：国家自然科学基金项目(50679063);国际科技合作项目(2005DFA20520)

摘　　要：TOPMODEL模型是一个以地形为基础的半分布式水文模型,在降雨径流模拟中得到广泛应用,但也存在着基流过程模拟不尽合理等问题。本文利用Horton下渗曲线改进TOPMODEL模型的基流模拟,并采用羊坪、猴子岩、西峡和东湾四个流域的降雨径流资料进行实例研究。结果表明,改进的TOPMODEL模型不仅能够更加合理地模拟基流过程,而且径流过程的模拟精度要优于原TOPMOD-EL模型。TOPMODEL is a semi-distributed hydrological model and has been widely used in rainfall-runoff simulation. However, the simulated baseflow hydrograph by the TOPMODEL is unreasonable. The Horton infiltration capacity curve is introduced to modify the TOPMODEL. The daily rainfall and runoff data of four catchments of Yangping, Houziyan, Xixia and Dongwan were selected for case study. The results show that the modified TOPMODEL can improve baseflow hydrograph simulation, and the model efficiency is higher than that of the original TOPMODEL.

关 键 词：水文模型 TOPMODEL模型 Horton下渗曲线 基流 

分 类 号：P338.9[天文地球—水文科学]