Translations:Unterteilung in Systemelemente/11/en

The next step is to decide which system elements are to be used to map the sub-catchments, depending on the problem and the data basis. Alongside the system element sub-basin, which brings the load into the system via a precipitation-runoff simulation, the system element point source can feed the outflow from the sub-catchment directly into the system via a hydrograph. The latter is of course only possible if a hydrograph is available. Then it is the solution using the fewest computational resources, which in addition (with good quality of the input data) illustrates the actual outflow behavior in the most realistic manner. If, however, for example, a forecast is to be calculated under changed land use conditions or if the discharge hydrograph is not long enough, it is advisable to use the system element sub-basin. In Talsim-NG the selection of the system element for subcatchments can also vary from subcatchment to subcatchment.