Imagination and intuition are challenged when modeling water systems, especially regarding subsurface flow phenomena. This is due to the fact that the occurring processes elude direct observability. For example, the system setup can only be developed with the help of a hydrogeological model based on point source information (bore holes, exploration points). The complexity of the problem is further increased by the use of an integrated approach for the complete water system including surface as well as subsurface components.
Simulation results often have to be presented in a comprehensible way not only in front of an audience consisting of specialists (consultants, public authorities) but also in front of decision makers outside this subject area (stakeholders, general public). The main issues of previous visualization approaches are cluttering, occlusion, and depth perception leading to a loss of their illustrative character.