TOPMODEL模型在半湿润地区径流模拟分析中的应用及改进  

Application and improvement of TOPMODEL for rainfall runoff modeling in semi-humid region

作　　者：李抗彬[1,2] 沈冰[1] 宋孝玉[1] 郝改瑞 

机构地区：[1]西安理工大学水利水电学院,陕西西安710048 [2]西安兰特水电测控技术有限责任公司,陕西西安710043

出　　处：《水利学报》2015年第12期1453-1459,共7页Journal of Hydraulic Engineering

基　　金：国家自然科学基金重点项目(50939004);陕西省教育厅重点实验室项目(JS067)

摘　　要：为了使TOPMODEL模型结构更合理,并能够用于半湿润地区或半干旱地区的径流过程模拟,文章对TOPMODEL模型的蒸发产流模块以及汇流模块进行改进,在蒸发产流模块中添加植被冠层截留蒸散发模型和Holtan超渗产流模型,汇流模块中坡面汇流采用瞬时单位线模型,河道汇流采用马斯京根河道洪水演进模型。通过对半湿润地区流域内降雨径流过程的模拟验证,表明通过对TOPMODEL模型的改进,模型对半湿润地区的降雨径流过程模拟精度有很大的提高,拓展了TOPMODEL模型适用范围。In order to make the TOPMODEL structure more reasonable and applicable to semi-humid re- gion for rainfall runoff modeling, the evaporation runoff module and confluence module of TOPMODEL were improved. The vegetation canopy intercept evaporation model and Hohan exceed infiltration runoff model were added in the original evaporation runoff module. The overland flow concentration and the river chan- nels flow concentration of original confluence module were changed to the Nash instantaneous unit hydro- graph and the Muskingum method of flood routing respectively. Then the applicability of improved TOPMOD- EL was tested in the semi-humid region and its results indicated that simulation using modified modules provided much better results than that of the original model. Therefore, improved TOPMODEL could be effi- ciently used and extended scope of application in the Semi-humid region.

关 键 词：TOPMODEL模型 地形指数 超渗产流 降雨径流 

分 类 号：P333[天文地球—水文科学]