The GIS-Based Information System of Geological Hazard Reconnaissance

Geological hazard explorations and fathering in Three Gorges Reservoir Area is a great systematic project, which is based on the data from lots of reconnaissance engineering in short time. The engineering projects are in the charge of dozens of engineering groups from different professional categories with different software. To prevent the uncertainty and incoherence of original data and productive documentation, GeoHazard based on geographic information system is designed and developed to meet the demands from the basic working units and departments of data management. Directed with the theory of the point-source information system, GeoHazard has a thematic database of point-sources as its core, and support the full professional operation of hazard reconnaissance from data acquisition, to map drawing, together with other basic functions on management. It features with the standardization of terminology, code and metadata, integrated management of all types of data and documents, and visualized data analysis, query and presentation.