Discharge area (Watershed Overlay): Difference between revisions

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{{Overlay attribute
{{Overlay keys|<onlyinclude>
|attribute=DISCHARGE_AREA
{{Overlay keys|type=row|overlay=Watershed
|unit=m
|key=DISCHARGE_AREA
|description=Indicates that an [[Area]] is considered a unique discharge area. Discharge areas conceptually represent regions where rain water ends up and potentially enters the water management system to be discharged.
|unit={{boolean presence}}
}}
|icon=Watershedwizard_icon_discharge_area.png
|description=Identifies the [[Area]] as a unique discharge area.  
}}</onlyinclude>}}
 
Discharge areas represent regions where rain water ends up and potentially enters the water management system to be discharged.


==Notes==
{{article end
* A discharge area always forms the basis of a watershed. Directional water flow (or the steepness in the terrain) is backtracked to determine the watershed for a particular discharge area.
|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 (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 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.
* 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=
==How to==
*[[How to import discharge areas]]
*[[How_to_import_discharge_areas| How to import discharge areas]]
|seealso=
==See also==
* [[Discharge method (Watershed Overlay)]]
* [[Discharge method (Watershed Overlay)|Dischard method]]
* [[Discharge areas result type (Watershed Overlay)]]
* [[Discharge_areas_result_type_(Watershed_Overlay)|Discharge areas (result type)]]
* [[Watershed Module]]
}}


{{Template:WatershedOverlay_model_attribute_nav}}
{{WatershedOverlay model attribute nav}}

Latest revision as of 15:55, 23 February 2023

Icon Key Unit Range Description Default value
Watershedwizard icon discharge area.png 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

Watershed Module
Benchmarks button.png
Watershed wiki2.png
Watershed Module
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Getting started button.png
Tutorials
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Overview button.png
Overview
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Theory button.png
Theory
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Benchmarks
Group
Structures
Discharge area • Culvert
Overlay
Fill distance • Discharge remaining water • Culvert flow direction • Min area • Limit road
Related
Result type • Model attributes


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