Discharge area (Watershed Overlay): Difference between revisions
Jump to navigation
Jump to search
No edit summary |
mNo edit summary |
||
| Line 12: | Line 12: | ||
* A discharge area always forms the basis of a watershed. Directional water flow, or the gradient of the terrain depending on the [[Discharge method (Watershed Overlay)|discharge method]], is backtracked to determine the watershed for a particular discharge area. | * A discharge area always forms the basis of a watershed. Directional water flow, or the gradient of the terrain depending on the [[Discharge method (Watershed Overlay)|discharge method]], is backtracked to determine the watershed for a particular discharge area. | ||
* When multiple [[Area|areas]] overlap for a particular grid cell, only the first encountered discharge area is used. | * When multiple [[Area|areas]] overlap for a particular grid cell, only the first encountered discharge area is used. | ||
* | * In the initialization step of the watershed algorithm, water cells that are not yet assigned to any discharge area are automatically assigned to one when they are connected as a neighbor or by a culvert. | ||
|howtos= | |howtos= | ||
*[[How to import discharge areas]] | *[[How to import discharge areas]] | ||
| Line 18: | Line 18: | ||
* [[Discharge method (Watershed Overlay)]] | * [[Discharge method (Watershed Overlay)]] | ||
* [[Discharge areas result type (Watershed Overlay)]] | * [[Discharge areas result type (Watershed Overlay)]] | ||
* [[ | * [[Watershed Module]] | ||
}} | }} | ||
{{WatershedOverlay model attribute nav}} | {{WatershedOverlay model attribute nav}} | ||
Revision as of 09:06, 5 November 2020
| Icon | Key | Unit | Range | Description | Default value |
|---|---|---|---|---|---|
| DISCHARGE_AREA | boolean by presence | Identifies the Area as a unique discharge area. | n/a |
Discharge areas represent regions where rain water ends up and potentially enters the water management system to be discharged.
Notes
- A discharge area always forms the basis of a watershed. Directional water flow, or the gradient of the terrain depending on the discharge method, is backtracked to determine the watershed for a particular discharge area.
- When multiple areas overlap for a particular grid cell, only the first encountered discharge area is used.
- In the initialization step of the watershed algorithm, water cells that are not yet assigned to any discharge area are automatically assigned to one when they are connected as a neighbor or by a culvert.
How-to's
See also
- Group
- Structures
- Discharge area • Culvert
- Overlay
- Fill distance • Discharge remaining water • Culvert flow direction • Min area • Limit road
- Related