摘要
Flood character grid is the most important part of the spatial information grid, which is used in the research of the model for flood disaster loss assessment. The implement of it's processing including: (1)Create a polygon class which has elevation, the depth of flood, the speed of flood current, the pollution degree of flood field in Personal Geodatabase; (2)Determining the size of grid and set the size of polygon element according with its size;(3)Import the attribute value to correspond field;(4)Use ArcEngine and C# programming implement it. The application example results show that the speed of use personal Geodatabase to create polygon class is very fast and use the data of DEM can extract the elevation attribute effectively, it can provide the basic data for the loss assessment of the flood disaster consequently.