Complementary calculations of runoff from natural grounds and dimensioning rainfall depth as well as residence times
Calculation of runoff from natural ground based on flow data has been implemented in the Design Flow box.
This calculation can be performed when the design flow from natural land prior to exploitation is to be calculated or when the influence of the surrounding natural environment on the design flow from an urban area is to be calculated.
Dimensioning rain depth (mm) is now calculated for the designed facilities, to e.g. compare to a possible condition that the facility should contain a certain rainfall of, for example, 10, 20 or 25 mm.
Residence times at e.g. average runoff or maximum outflow is calculated to be compared with conditions that the residence time should be at least 12 hours or the like.
In this way, the dimensions of the facility can be adapted to different given conditions.
Rainfall depths and residence times are now presented in the results report.