Contributor

The Contributor plugin is used to determine how much constituent travels to a point in a network. For example, you may calculate the amount of suspended solids that run off a sub-catchment that have been transported to the mouth of a river (the assumption is that proportions of the runoff are deposited in the network as it travels through the catchment). Use the following plugin file:

C:\Program Files\eWater\Source version\Plugins\RiverSystem.Plugins.Contributor.dll

Location in Source: Tools » Plugins » Contributor » Contributor

Basic operation

Select and run the constituent of interest (functional units cannot be chosen yet). The map provides a graphical representation of the amount of the constituents that have contributed to the terminal (or outlet) node in the network (Figure 1). You can select another point in the system by clicking on the link above the desired node on the map. The results are automatically recalculated and may be standardised for catchment areas by clicking the Standardise for area checkbox at the bottom left of the plugin window.

Figure 1. Contributor tool, spatial analysis

The Table tab shows the results in tabular form (Figure 2).