Study on the Development of Inter-university Geographic Data Infrastructure Systems

数字地理数据包括地图、人口普查数据和遥感数据，在人文地理学、自然地理学、经济地理学等领域都有应用。然而，在进行这些研究时，很难找到哪里有必要的数据;没有系统的方法在大学之间分享昂贵的地理数据;也没有分享软件研究信息的系统。这个项目的目标就是解决这些困难，我们几乎已经实现了这个目标。主要成果如下：1.目录服务器系统。在过去，信息交换所用于搜索地图数据。然而，这个系统只能由一个拥有技术人员的大型组织来运行，而不能由大学来管理。因此，我们开发了一个简单的系统，大学研究人员可以轻松管理。目前，东京大学空间信息科学中心（CSIS）运行着这个系统，任何研究人员都可以将其用于学术用途。在不久的将来，分支大学将运行这个系统。2.目录内容制作系统。我们开发了软件，研究人员可以轻松地制作目录内容。3.目录内容的构建。利用该系统，我们已经建立了数字地图，人口普查数据和Zmaps的目录内容，这些都是研究人员经常使用的。建立了面向国家地图虚拟博物馆的各类地图目录内容。4.数据共享系统。我们开发了一个系统，研究人员可以下载的数据，由上述目录服务器系统搜索。5.软件搜索系统。我们已经开发了一个用于查找软件包的网络系统，以及一个下载自由软件包的系统。

Studies with digital geographical data including maps, census data and remotely sensed data are found in human geography, natural geography, economic geography and so forth. In carrying out these studies, however, it is difficult to find where necessary data are available ; there is no systematic way of sharing expensive geographical data among universities ; and there is no system of sharing research information about software. The objective of this project was to resolve these difficulties, and we have almost achieved this objective. Our major outcome is as follows.1.Catalog server system. In the past, clearinghouse was used for searching map data. However, this system could be run only a large organization with technicians, and it could not be managed by universities. Therefore, we have developed an easy system that university researchers can easily manage. At present, the Center for Spatial Information Science at the University of Tokyo(CSIS) runs this system, which can be used by any researchers for academic use. In the near future, branch universities will run this system.2.System for making catalog contents. We have developed software with which researchers can easily make catalog contents.3.Construction of catalog contents. Using the above system, we have constructed catalog contents of digital maps, census data and Zmaps which are frequently used by researchers. We have also constructed catalog contents of various maps toward the National Virtual Museum of Maps.4.Data sharing system. We have developed a system with which researchers can down load the data that are searched by the above catalog server system.5.Software search system. We have developed a web system for finding software packages, and a system of down loading free software packages.