Abstract:

According to the problem of insufficient performance for water pollution migration simulation, On the basis of water pollution event data and spatial data integration, the main watercourse was decomposed to multi-scale triangle face for forming water quality infinitesimal. The halftone patterns and mesh view model was set up. A Digital Earth visualization service framework was constructed with 3S data, tiles-pyramid, OGC standard, high-performance computing，interoperability environment etc as principal part. And a system was realized for application test. The experiment results show that: this method can effectively express the status of pollutants evolution, and describe the migration process of water pollution more intuitively with topography data collected and provided by Digital Earth.