由DEM确定R-V地貌瞬时单位线的研究  

Study on R-V GIUH by Use of DEM

作　　者：瞿思敏[1] 包为民[1] 李清生[2] 石朋[1] 赵超[1] 

机构地区：[1]河海大学水资源环境学院,江苏南京210098 [2]福建省南平市水文水资源勘测分局,福建南平353000

出　　处：《水文》2003年第1期6-9,共4页Journal of China Hydrology

摘　　要：介绍了地貌瞬时单位线(R-VGIUH)的基本理论与理论基础。由于以往确定流域单位线需要大量的降雨径流实测资料,试图应用地理信息系统(GIS)技术建立流域数字高程模型(DEM),从而可以仅依据地形资料来确定R-V地貌瞬时单位线,解决无资料地区的洪水预报问题。以长江三峡区间沿渡河流域为例,取得了较好的成果。The basic theory of R-V GIUH is introduced.Due to a lot of data of precipitation and runoff are needed when determining a basin's unit hydrograph,the method of applying Geographic Information System(GIS)to establish basin's Digital Elevation Model(DEM)is presented.The unit hydrograph can be determined only on the basis of topographic date to resolve the problem of the flood forecasting in the data shortage region.The method is applied in Yanduhe River Basin of Three Gorges Interval of Yangtze River and the results are satisfactory.

关 键 词：地貌瞬时单位线 地理信息系统 流域数字高程模型 DEM GIS 水文信息 洪水预报 

分 类 号：P338[天文地球—水文科学]