Research on disaster assessment methods and integrated information systems based on GIS grid

Firstly this paper summarizes the model of the disaster loss calculation based on GIS grid, and then develops a regional disaster assessment information system based on WebGIS. Using the space grid as the computing unit, grid-based disaster damage assessment model gives us a new way to analyze and process the disaster geospatial data and the socio-economic data on the unit grid. It can express the process of the disaster dynamically. This paper elaborates the method of the grid-based disaster loss calculation. Then we have discussed the development objectives and function design of the integrated system. Finally, combined with ArcGIS Server platform we have developed a system and as a result conducted a scenario simulation and grid-based damage assessment experiments on several major disasters. It has got a good result.