Scale-up of a runoff model using GIS and an object-oriented hydrological modelling system
Scale-up of a runoff model using GIS and an object-oriented hydrological modelling system
复制标题
使用 GIS 和面向对象的水文建模系统放大径流模型
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Y. Ichikawa
中科院分区：
文献类型：
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作者：
M. Shiiba;Y. Ichikawa
流域地形特征对径流过程有很大的影响。如果考虑流域地形特征的集总径流模型能比分布式径流模型更快、更准确地模拟径流过程，则集总径流模型将是非常有用的。本文介绍了一种考虑地形特征的分布式径流模型的分块放大方法，并给出了应用结果。在我们的方法中，我们调查的分布性质的地形特征，在一个盆地使用盆地地貌信息系统（BGIS），和块体边坡系统使用聚类分析技术。本文还建立了一个集总河网模型，假设流量在各个时刻沿沿着各河段呈线性变化。为了使一个总的系统模型，我们使用面向对象的水文模拟系统（OHyMOS），这已经在京都大学使用面向对象的语言C++开发。
The topographic characteristics of a basin have great influence on runoff processes. If a lumped runoff model that takes into account the topographic characteristics of a basin can simulate runoff processes as exactly as and faster than a distributed runoff model, the former will be very useful. This paper describes a method to lump and scale-up a distributed runoff model taking into account the topographic characteristics and shows the results of its application. In our method, we investigate distributed nature of topographic characteristics in a basin using the Basin Geomorphic Information System (BGIS), and lump slope systems using the cluster analysis technique. We also make a lumped stream network model on the assumption that stream discharge varies linearly along each stream segment at individual moment. To make a total system model, we use the Object-oriented Hydrological Modelling System (OHyMOS), which has been developed in Kyoto University using the object-oriented language C + +.