General

Under the General tab the following catchment properties are specified:

·         Area

·         Rainfall-runoff model

·         Calibration plot

·         Load shape

Area

An accurate specification of the catchment area is required in order to calcu­late the runoff.

Catchment areas can either be assigned manually, or calculated automati­cally based on the catchment shapes on the map by enabling ‘Use catchment shape for area calculation’. By default the calculated catchment areas are used. To manually assign catchment area, the option ‘Use catchment shape for area calculation’ must be disabled.

Rainfall-runoff model

The following types of rainfall-runoff models are offered:

·         NAM

·         UHM

·         Time-Area

·         Kinematic wave

Calibration plot

It is possible to save the calibration plot by enabling ‘Calibration plot’. The calibration plot shows observed and simulated runoff for the catchment, cf. Section 7.1.3.

Load shape

It is possible to import/load the shape of a catchment directly. Click ‘Load shape’, select the relevant shape file and choose the shape item that repre­sents the catchment.

Note: this functionality will only edit the shape of the active catchment on the map. It will not create any new catchment. Instead, it is possible to import and create one or multiple catchments at once from a shape file. To achieve this, please see section Import from Shapefile.