Thickness and distribution
Global values must be specified and applied throughout all calculation points in the river network, unless local values have been defined.
Active layer thickness
The initial thickness of the active layer.
Passive layer thickness
The initial thickness of the passive layer. This field may be set to zero: in this case, the active layer will be set to the Active layer target thickness by exchanging with the passive layer.
Percentage, active layer
The initial percentage of each fraction within the active layer. The sum of the initial percentages should equal 100%, otherwise the percentage values will be scaled so that the sum equal 100%.
Percentage, passive layer
The initial percentage of each fraction within the passive layer. The sum of the initial percentages should equal 100%, otherwise the percentage values will be scaled so that the sum equal 100%.
Local values of initial thickness, for both active and passive layers, may be applied at specific locations defined by Branch name and Chainage, in the left table. The secondary table on the right-hand side contains the initial fractions distributions for the current local value in the left table.