Study on Fundamental Themes of Natural Disaster Science and Collection and Analysis of Data

(1)研究课题研究与组织研究，列出了自然灾害科学的重要课题并进行了讨论。特别是1992年2月在北海道丰滨隧道西口的海崖崩塌和1996年12月在长野县大谷村的Gamahara激流泥石流，分别组织了特别研究小组。这些小组旨在澄清灾害的机制，并研究预防或减少这些灾害的方法。此外，有必要制定一个项目，作为国际预防自然灾害十年的后续行动，以组织国际预防灾害研究。(2)自然灾害数据采集与分析研究研究了如何向科研人员提供或公开利用自然灾害数据，建立了一个利用WWW进行自然灾害科学信息交流和公开的系统。另一方面，举办自然灾害科学专题讨论会，交流和宣传自然灾害科学的研究成果。讨论会是为研究1995学年最近发生的灾害而举行的，并介绍和讨论了研究结果。(3)灾害的地方性特征研究分别收集各地区的灾害文献和报告，构建数据库集，研究区域灾害的地方性特征。此外，还研究了如何组织对局部灾害感兴趣的不同学科的研究人员，并在各区举办了灾害科学研讨会。上述研究成果部分发表在《自然灾害科学学术研讨会论文集》、《各区灾害科学学术讨论会论文集》和《日本自然灾害科学研究会通讯》上。

(1) Study on Research Topics and Organizing for ResearchImportant topics for natural disaster science were listed up and discussed. In particular, special research groups were organized for the collapse of sea cliff at the western entrance of the Toyohama Tunnel, Hokkaido, in February 1992, and the Gamahara Torrent Debris Flow, in Otani village, Nagano Prefecture in December 1996, respectively. These groups intended to clarify the mechanism of the disasters and to study the methods to prevent from or reduce these disasters. Furthermore, necessity to make a project to follow up International Decade for Natural Disaster Prevention to organize international research for disaster prevention.(2) Study on Collection and Analyzes of Data of Natural DisastersIt was studied how to provide the data or how touse them in public for researchers, and a system to exchange or publicize the information on natural disaster science was founded which utilizes WWW.On the other hand, symposia on natural disaster science are held to exchange and publicize the results of researches on natural disaster science. The symposium was held for research on recent disasters in academic year of 1995 and the results of the studies were presented and discussed.(3) Study of Local Characteristics of DisastersDocuments and reports on disasters in local districts were collected respectively to construct a data base set, and the local characteristics of regional disasters were studied. Furthermore, it was studied how to organize researchers in different disciplines who are interested in localized disasters, and colloquiums on disaster science were held in respective districts.A part of the above-mentioned results of the study program was published as Proceedings of Symposium on Natural Disaster Science, Proceedings of Colloquiums on Disaster Science in Respective Districts, and News Letter for Japanese Group for the Study of Natural Disaster Science.