张建云, 何惠. 应用地理信息进行无资料地区流域水文模拟研究[J]. 水科学进展, 1998, 9(4): 345-350.
引用本文: 张建云, 何惠. 应用地理信息进行无资料地区流域水文模拟研究[J]. 水科学进展, 1998, 9(4): 345-350.
Zhang Jianyun, He Hui. Study on Runoff Modeling in Non Data Watershed Using Geo Referenced Data[J]. Advances in Water Science, 1998, 9(4): 345-350.
Citation: Zhang Jianyun, He Hui. Study on Runoff Modeling in Non Data Watershed Using Geo Referenced Data[J]. Advances in Water Science, 1998, 9(4): 345-350.

应用地理信息进行无资料地区流域水文模拟研究

Study on Runoff Modeling in Non Data Watershed Using Geo Referenced Data

  • 摘要: 无资料或资料缺乏地区的流域径流模拟是水文学研究中的一个重要的课题.提出了应用地理信息系统分析流域的地理信息参数,进行降雨径流模拟的水文模型.该模型中,产流计算采用美国水土保持局(SCS)的径流曲线数法,流域汇流则采用经本文作者改进的三角形单位线.着重阐述了利用地理信息系统,从流域的地理信息中分析和确定模型参数,还简要介绍了该模型在爱尔兰Dodder河上的应用情况.

     

    Abstract: The runoff modeling in the watersheds where there is lack of hydrologicoal data is amportant and difficult prolbem in Hydrology. In this article, one hydrological model which can be used to model runoff in a watershed only using its geo-eferenced data based on a Geographical Information System was presented. In this model, the Runoff Curve Number method of SCS(Soil Conservation Service of American) was a used to calculate the generated runoff volume in a storm, and one revised unit hydrograph was proposed based on the triangular shape unit hydrograph of SCS and used to route the runoff into discharge at the outlet of thewatershed. In this paper, how to determine parameter values using geo-eferenced data of the watershed was discussed, and finally,the application of the model in the Dodder watershed of Ireland was intoduced as a case study.

     

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