长江防洪减灾空间数据仓库初步研究

Preliminary study on space databank of flood control and disaster mitigation in Yangtze river basin

从 2 0世纪 90年代开始 ,空间数据技术发展迅速 ,但由于高维分析的复杂性 ,影响了空间数据仓库技术的广泛应用。针对长江防洪减灾的特点 ,提出了建立长江防洪减灾空间数据仓库的主题和数据分布设计方案 ,即采用分布式方案。介绍了长江防洪减灾空间数据仓库的创建和开发。从目前长江防洪有用信息贫乏的现状出发 ,阐述了建立空间数据仓库的必要性和紧迫性。

Since 1990s, the space data technology has rapidly been developing. But because of the complexity of multi-dimensional analysis, extensive application of the space databank technology is affected. According to the characteristics of the flood control and disaster mitigation in the Yangtze river basin, it is proposed to establish a design scheme of the subject and data distribution of the space databank of the flood control and disaster mitigation in Yangtze river basin, i.e., to adopt a distribution - type scheme. The creation and development of the space databank of the flood control and disaster mitigation in Yangtze river basin is presented. The necessity and urgency of establishing the space databank is expounded from the viewpoint of the present situation being short of available information for the flood control and disaster mitigation in Yangtze river basin.