To the problem of difficult in combination of calculating method based on DEM and the mature assessment model, this paper uses square grid analysis method as a bridge. using this method, this paper analyze the connectivity of submerging.

• 针对系统中基于DEM的洪水淹没计算与成熟的评估模型结合不紧密的问题,采用正方形格网分析法作为解决问题的桥梁,并利用这种分析方法进行了淹没连通性的分析,讨论了正方形格网分析法与成熟的评估方法相结合的模型。