The design and realization of the spatial database for emergency earthquake damage assessment based on RS and GIS

While an earthquake occurs especially in depressed areas or mountainous regions, the survey of damage loss becomes arduous because of chaos and awful communication condition. A solution is proposed that using RS (remote sensing) and GIS (Geographic Information System) techniques assesses seismic damage loss for emergency, which need establish a spatial database to store the necessary data. In this paper, the design of the spatial database is introduced. The database depended upon RDBMS (Relational Database Management System) and SDE (Spatial Data Engine), including images, vector files and tables which are sorted by types and organized by every earthquake events, divides into several sub-databases. According to the integrated database and its management system, emergency earthquake damage assessment could be realized. The constructive work provides much faster response and data service and is even more economical to a certain extent. A similar spatial database has been deployed at national commanding center for earthquake emergency response of China.