By default, the OL Drainage function routes the available ponded water to the OL drainage network. However, the available ponded depth does not include the detention storage. If you want to route all of the ponded water in a cell - including the water in detention storage - to the OL Drainage network, then you can define the following Extra Parameter:
|
Parameter Name |
Type |
Value |
|---|---|---|
|
allow paved routing of detention storage |
Boolean |
On |
By default the OL Drainage will occur no matter the elevation of the destination cell. In some cases this could lead to unrealistic drainages. For example, OL drainage on a flood plain mapped to a river will always drain to the river, even if the river is higher than the drain level. To counter such unrealistic conditions, this Extra Parameter will prevent OL drainage in the case where the drain level is below the bed level of the river.
Note: This check is between the Drain level and the Bed level - not between the dynamic water levels.
|
Parameter Name |
Type |
Value |
|---|---|---|
|
check OL-drain level against bed level' |
Boolean |
On |
The interaction between the multi-cell OL solution and the OL drainage is complex and could lead to some unexpected results. Further, the multi-cell OL solution is more likely to be used as a more physical representation of the drainage rendering the OL drainage obsolete in this case. This option allows you to disable OL drainage when using the multi-cell OL approach.
|
Parameter Name |
Type |
Value |
|---|---|---|
|
disable multi-cell OL-drainage |
Boolean |
On |
