Data preparation and database design for information system on geological disaster

Geological data is a pivotal part and base to construct the geological disaster information system.According to the scheme idea of true and reliable data source,permissive data standard basis and clear data organization arrangement,this article has discussed on data's collection,settlement,standard,coding and data base programming.It has enumerated the cited data standard,established data term coding principle and system.It has also plotted out the vacuum information layer.In addition,the construction programming of geological disaster data base,the constitution of data base's forms and logical relations have been discussed.