Call via: SPRING Calculation Transport with inverse flow

It is possible to visualise catchment areas taking into account advection and dispersion/diffusion processes. This means that local heterogeneities can also be modelled using the dispersion term, which cannot be determined using conventional velocity tracking methods, or only to a limited extent.

The procedure and the basic principles are described in the chapter "How to - Determining catchment areas".

The input parameters correspond to those of the mass transport and are described in detail there.