Non-scouring bed levels, where a non-erodible surface is present can be used in the simulation if this option is included. This option is only used in combination with morphological update.
During a morphological simulation, if bed erosion occurs and the bottom of the bed reaches the defined non-scouring level, no further bed erosion will take place.
Global values are applied throughout all calculation points in the river network unless local values have been defined. Local values may be specified in the table. Local values are applied at specific locations defined by Branch name and Chainage.
Apply unlimited scouring
When this option is selected, the scouring is unlimited. The combinations of global and local values can therefore be used to limit scouring only at given locations.
Non-scouring bed level
When scouring is not unlimited, it is possible to specify the global or local non-scouring bed level.