GeoHazard: the Information System for Hazard Reconnaissance in Three Gorges Reservoir Area

Investigation and management of geological hazards in Three Gorges Reservoir Area involves lots of engineering projects, which produce huge data and documents in short time. An information system is needed to meet the demands from the basic working units and departments of data management. A point-source information system called GeoHazard is developed to fulfill the tasks. The system has a thematic database of point-sources as its core. Solutions for data acquisition based on a geographic base map, GIS-based map drawing, visualized query upon maps and web-based remote data handing up are provided. A number of functions is implemented, which includes data input, drawings producing, data storage and management, computer-aided output. The system supports geological hazard investigation activity as a whole. 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.