This paper represents the algorithm of superimposing underwater relief and land relief basing on heterogeneous initial here data with the use of Delaunay triangulation.As a result of superimposition a qualitative 3D relief model has been created.This model chiggate.com can be used in generating forecasts of reservoir shoreline alterations related to hydroelectric power plant flushing.
The described technology has been approbated in various practical tasks and has shown its efficiency.