Discharge area (Watershed Overlay): Difference between revisions
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{{Overlay attribute | {{Overlay attribute | ||
| | |key=DISCHARGE_AREA | ||
|unit=m | |unit=m | ||
|description=Indicates that an [[Area]] is identified as a unique discharge area. Discharge areas represent regions where rain water ends up and potentially enters the water management system to be discharged. | |description=Indicates that an [[Area]] is identified as a unique discharge area. Discharge areas represent regions where rain water ends up and potentially enters the water management system to be discharged. |
Revision as of 15:26, 9 July 2020
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 first step of the watershed algorithm, connected water cells that water cells will be assigned to this discharge area when they are not yet assigned to any discharge area.
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See also