Development of River Basin Database for Watershed Management

研究小组讨论了为日本河流流域的研究和实际工作而应建立的综合水文信息和数据库管理系统。尤其是河道网络数据集，是模拟流域径流系统的最基本数据集。本文提出了一种新的表示河网结构的数据格式，并开发了一个河网数据集生成系统。该系统已应用于中国的石广河流域、泰国的昭披耶河流域和日本的大堂川河流域。所生成的数据集被直接纳入作者所描述的流域径流模拟系统，并进行了洪水径流模拟。

The research group discussed comprehensive hydrological information and database management systems, which should be established for research and practical works in river basins in Japan. Especially the channel network datasets are the most fundamental datasets for modeling a rainfall-runoff system. In this paper, a new data format for representing river network structures is presented and a river network dataset generation systems are developed. The systems are applied to the Shiguang River Basin in China, the Chaopraya River Basin in Thailand and the Daidogawa River Basin in Japan. The datasets generated here are directly incorporated into the rainfall-runoff modeling system which is described by the authors and flood runoff simulation has been conducted.