A distributed hydrological modelling system linking GIS and hydrological models
A distributed hydrological modelling system linking GIS and hydrological models
复制标题
连接GIS和水文模型的分布式水文建模系统
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
N. Hayakawa
中科院分区：
文献类型：
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作者：
Minjiao Lu;Tosio Koike;N. Hayakawa
遥感技术和地理信息系统的最新发展使得捕获和管理有关空间分布的水文参数和变量的大量数据成为可能。连接 GIS 和分布式水文模型的重要性正在迅速增加。在这项工作中，开发了一种最佳通道路由方案，该方案使下游通道在其上游通道之后进行路由，并最大限度地减少对计算机内存的需求。基于该方案，构建了一个分布式水文建模系统，包括河网勾画、扩展Horton-Strahler河道排序和水文属性提取的自动程序。演示了分布式融雪径流模型的实现。该模型利用遥感积雪覆盖情况对鱼野河进行融雪分析。
Recent developments of remote sensing technology and GISs make it possible to capture and manage a vast amount of data on spatially distributed hydrological parameters and variables. Linking the GIS and the distributed hydrological model is of rapidly increasing importance. In this work, an optimal channel routing scheme is developed which keeps the downstream channel to be routed after its upstream channels and minimizes the requirement on computer memory. Based on this scheme, a distributed hydrological modelling system including automatic procedures of channel network delineation, extended Horton-Strahler channel ordering and extraction of hydrological attributes is constructed. The implementation of a distributed snowmelt runoff model is demonstrated. Snowmelt analysis for the Uono River is carried out by this model, using remotely sensed snow coverage.