button and click Browse... to select an existing flow loss time series or click Create a new file… to open the ‘Create a new file’ dialogue.
Supply connections may lose water due to seepage and /or evaporation. If these processes are considered to be of importance they may be included in the model as a time series that specifies the losses. Both seepage and evaporation can be specified as a fraction of the actual flow (dimensionless), or as flux (volume per time).
To add a flow loss time series, enable ‘has flow loss’, click on the button and click Browse... to select an existing flow loss time series or click Create a new file… to open the ‘Create a new file’ dialogue.
The user-specified water demand D of the connected user is automatically adjusted to take the loss into account. The adjusted water demand D* is calculated as follows:
This means that the Water user demands will still be fulfilled, if sufficient water is available at the supply source. This also applies, if the flow loss is given as a flux.
If groundwater is defined in the Catchment where the supply connection begins (where the extraction point is located), seepage loss is added to this groundwater storage. However, with the current implementation seepage flow is lost, if the supply connection begins in a catchment node.
