DISASTER INFORMATION INTEGRATION METHOD OF DISASTER PREVENTION AND REDUCTION SYSTEM
All kinds of frequent natural disasters cause serious catastrophe and great losses of people's life and production in the world. All national governments and departments in charge of disasters have paid greater and greater attention to establishing disaster prevention and reduction system to effectively reduce losses. In this paper, fist of all, the characteristics of integrative disaster information are analyzed, and the requirements of static and dynamic integration of the disaster information are investigated. And then, a method of disaster information integration is presented with geography coding, large scale relation database and dynamical data exchange technology. In the method, 1)fundamental spatial information integration is implemented by the consistency processing, format transformation and projection processing of spatial and attribute data;2) the disaster information data such as statistical data, text, images, multimedia and thematic graphs is organized by establishing tree structure index in terms of disaster classification based on geography coding technology;3)dynamic disaster information integration is realized by establishing temporal index information on spatial and non-spatial data in a way of automatic data processing and loading. Finally, an implementation shows that this method can be well applied into disaster prevention and reduction system for government departments.