Table 3.
D-S model parameters
| Parameter | Land cover feature | Variant | Function | C-breaking point (m) | D-breaking point (m) |
|---|---|---|---|---|---|
| Wetlands | Wetlands | Decreasing | Linear | 0 | 77.5 |
| Dense vegetation near open water* | Open water | Decreasing | Sigmoidal | 0 | 569.75 |
| Dense vegetation** | Decreasing | Linear | 0 | 17.5 |
Land cover feature describes the land cover that has been extracted from the classified image for the creation of the parameter. C-breaking point refers to the distance from the land cover at which the fuzzy value begins to drop from 1 down to a value of 0 with that distance indicated by breaking point D. The decreasing variant described that the fuzzy value approached 0 rather than 1. The function refers to what method of slope was used to create the fuzzy layer
* Parameter relied on two separate fuzzy layers overlaid through multiplication
** User-defined linear relationship, where the maximum predictive value was set at 0.50