All subcatchments that are delineated are automatically networked by CatchmentSIM to provide hydrologic connectivity. Labelling can be turned on in the Layer Controller. This ensures that CatchmentSIM projects are compatible with hydrologic and hydraulic models which may be coupled with the software. An example of the subcatchment networking methodology and associated labelling is illustrated in Figure 28.
Figure 28 : Sample CatchmentSIM Nodal Network Arrangement
The labelling methodology is designed to identify the significance of the upstream tributary to the left of the decimal point, and the subcatchment position in the tributary network to the right of the decimal place. A number of options are available to customise the labelling approach (CatchmentSIM Drop Down >> Project Options | Subcatchment Labelling). These include determining the tributary significance based on decreasing maximum stream length rather than in downstream order of lateral influx and using alphabetic letters instead of integers to the right of the decimal point.
