Development of hydrological data base and its sharing through camputer network

在日本目前的情况下，预计不会建立一个像美国那样规模的数据中心，并在数据中心安排专门的工作人员。因此，在建立和管理这样的数据中心需要预算的同时，有必要建立研究系统，使研究人员可以将数据库建设作为研究和教育的一部分，并构建真正向人类社会发送有用信息的框架。在本研究中，1.利用互联网这一近年来发展非常迅速的新媒体，建立了河流、水文、水资源等多个数据库，实现了数据库的共享。具体而言，建立了世界水资源收支、雷达降水资料、水质、降雨时间序列、太阳辐射等数据库。对江河水文信息向公众开放的现状进行了调查，并对未来的理想方式进行了思考。具体而言，提取了在建立水文水资源数据库时需要考虑的项目，并对日本水系和常江河(中国)防洪史的网页进行了调查。为了支持向公众公布和分享研究结果，加强和改进了日本土木工程师学会水力委员会和日本水文水资源学会的网络内容。

Under the present situation of Japan, it is not expected that a data center as large-scale as the United States is establishted and the special staffs are arranged in the data center. Therefore, while demanding the budget to establish and manage such data center, it is necessary to build the research system that the researcher can construct the data base as part of the research and the education and to construct the frame which actually sends useful information to the human society. Then, in this research,1. Several data bases concerning river, hydrology and the water resources have been constructed and the sharing of the data bases was achieved by using the Internet, which was new media developed extremely in recent years. Concretely, the data bases of the water budget of the world, radar rainfall data, water quality, rainfall time series, and the solar radiation were constructed.2. The current state of river and hydrological information open to the public was investigated and the ideal way in the future was considered. Concretely, the items were extracted which have to be considered when building a hydrology/water resources data base, and web pages on the river systems in Japan and the flood control history of Chang Jiang River (China) were investigated.3. To support disclosing and sharing of the result of the research to the public, the web contents of the hydraulic committee of JSCE (Japan Society of Civil Engineers) and Japan Society of Hydrology ＆ Water Resources were enhanced and improved.