Drainage (Subsidence Overlay) - Revision history

Maxim@tygron.com at 08:03, 9 October 2025

2025-10-09T08:03:44Z

← Older revision		Revision as of 08:03, 9 October 2025
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			{{deprecated}}
	{{Overlay keys\|<onlyinclude>		{{Overlay keys\|<onlyinclude>
	{{Overlay keys\|type=row\|group=Subsidence Overlay		{{Overlay keys\|type=row\|group=Subsidence Overlay

Frank@tygron.nl at 12:21, 28 May 2021

2021-05-28T12:21:16Z

← Older revision		Revision as of 12:21, 28 May 2021
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	{{article end		{{article end
	\|seealso=		\|seealso=
	* [[Water ~~level~~ area (Subsidence Overlay)\|Water ~~level~~ area]]		* [[Water area (Subsidence Overlay)\|Water area]]
	* [[Ground_water_depth_formula_(Subsidence_Overlay)\|Ground water depth formula]]		* [[Ground_water_depth_formula_(Subsidence_Overlay)\|Ground water depth formula]]
	}}		}}

	{{SubsidenceOverlay feature attribute nav}}		{{SubsidenceOverlay feature attribute nav}}

Frank@tygron.nl at 14:08, 10 February 2021

2021-02-10T14:08:12Z

← Older revision		Revision as of 14:08, 10 February 2021
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	\|description=The Drainage value has several behaviors, depending on its value. See the behavior description below.		\|description=The Drainage value has several behaviors, depending on its value. See the behavior description below.

	\|defaultvalue=~~n/a~~		\|defaultvalue=-1.0
	\|icon=subsidencewizard_icon_water_level.png		\|icon=subsidencewizard_icon_water_level.png
	}}</onlyinclude>}}		}}</onlyinclude>}}

Frank@tygron.nl at 13:34, 10 February 2021

2021-02-10T13:34:50Z

← Older revision		Revision as of 13:34, 10 February 2021
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	===Drainage behavior===		===Drainage behavior===
	* A drainage is active when the Drainage value is larger than 0. In this case, the drainage always sets the ground water level to the same relative depth. The drainage value indicates the relative depth of the ground water.		* A drainage is active when the Drainage value is larger than 0. In this case, the drainage always sets the ground water level to the same relative depth. The drainage value indicates the '''relative depth''' of the ground water.
	* A drainage is passive when the Drainage value is smaller than 0. In this case, depending on which ground water level is used (high or low), the water level is additionally adjusted with the [[Hi passive drainage (Subsidence Overlay)\|high]] or [[Low passive drainage (Subsidence Overlay)\|low passive drainage]] value configured for the [[Subsidence Overlay]]. In this case, the actual negative value of the drainage does not matter.		* A drainage is passive when the Drainage value is smaller than 0. In this case, depending on which ground water level is used (high or low), the water level is additionally adjusted with the [[Hi passive drainage (Subsidence Overlay)\|high]] or [[Low passive drainage (Subsidence Overlay)\|low passive drainage]] value configured for the [[Subsidence Overlay]]. In this case, the actual negative value of the drainage does not matter.
	* In case the drainage value is zero, the [[Drainage feature (Subsidence Overlay)\|Drainage]] has no influence on the groundwater level. In this case the [[Ground_water_depth_formula_(Subsidence_Overlay)\|general method]] to calculate the distance between the Surface and the Groundwater Level is used.		* In case the drainage value is zero, the [[Drainage feature (Subsidence Overlay)\|Drainage]] has no influence on the groundwater level. In this case the [[Ground_water_depth_formula_(Subsidence_Overlay)\|general method]] to calculate the distance between the Surface and the Groundwater Level is used.

Frank@tygron.nl: /* Drainage behavior */

2021-02-10T10:51:51Z

Drainage behavior

← Older revision		Revision as of 10:51, 10 February 2021
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	\|seealso=		\|seealso=
	* [[Water level area (Subsidence Overlay)\|Water level area]]		* [[Water level area (Subsidence Overlay)\|Water level area]]
			* [[Ground_water_depth_formula_(Subsidence_Overlay)\|Ground water depth formula]]
	}}		}}

	{{SubsidenceOverlay feature attribute nav}}		{{SubsidenceOverlay feature attribute nav}}

Frank@tygron.nl at 10:51, 10 February 2021

2021-02-10T10:51:13Z

← Older revision		Revision as of 10:51, 10 February 2021
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	===Drainage behavior===		===Drainage behavior===
	* ~~In case~~ the value is ~~positive and non-zero, this value represents the distance between the Surface and the Groundwater Level~~. In ~~that~~ case, the ~~Water Level will~~ always ~~remain~~ the same.		* A drainage is active when the Drainage value is larger than 0. In this case, the drainage always sets the ground water level to the same relative depth. The drainage value indicates the relative depth of the ground water.
	* In case the ~~value~~ is ~~negative and non-zero, either~~ the ~~configured~~ passive Hi or Low ~~Drainage~~ value for the Subsidence Overlay ~~will be used to determine the distance between the Surface and the Groundwater Level~~. ~~Also note that~~ the actual negative value ~~itself is~~ not ~~used~~.		* A drainage is passive when the Drainage value is smaller than 0. In this case, depending on which ground water level is used (high or low), the water level is additionally adjusted with the [[Hi passive drainage (Subsidence Overlay)\|high]] or [[Low passive drainage (Subsidence Overlay)\|low passive drainage]] value configured for the [[Subsidence Overlay]]. In this case, the actual negative value of the drainage does not matter.
	* In case the value is zero, the Drainage has no influence on the ~~Groundwater Level~~. In this case the general method to calculate the distance between the Surface and the Groundwater Level is used.		* In case the drainage value is zero, the [[Drainage feature (Subsidence Overlay)\|Drainage]] has no influence on the groundwater level. In this case the [[Ground_water_depth_formula_(Subsidence_Overlay)\|general method]] to calculate the distance between the Surface and the Groundwater Level is used.

	{{article end		{{article end

Frank@tygron.nl: Created page with "{{Overlay keys| {{Overlay keys|type=row|group=Subsidence Overlay |key=DRAINAGE |unit={{mdatum}} |description=The Drainage value has several behaviors, depending o..."

2021-02-10T10:42:37Z

Created page with "{{Overlay keys|<onlyinclude> {{Overlay keys|type=row|group=Subsidence Overlay |key=DRAINAGE |unit={{mdatum}} |description=The Drainage value has several behaviors, depending o..."

New page

{{Overlay keys|<onlyinclude>
{{Overlay keys|type=row|group=Subsidence Overlay
|key=DRAINAGE
|unit={{mdatum}}
|description=The Drainage value has several behaviors, depending on its value. See the behavior description below.

|defaultvalue=n/a
|icon=subsidencewizard_icon_water_level.png
}}</onlyinclude>}}

===Drainage behavior===
* In case the value is positive and non-zero, this value represents the distance between the Surface and the Groundwater Level. In that case, the Water Level will always remain the same.
* In case the value is negative and non-zero, either the configured passive Hi or Low Drainage value for the Subsidence Overlay will be used to determine the distance between the Surface and the Groundwater Level. Also note that the actual negative value itself is not used.
* In case the value is zero, the Drainage has no influence on the Groundwater Level. In this case the general method to calculate the distance between the Surface and the Groundwater Level is used.

{{article end
|seealso=
* [[Water level area (Subsidence Overlay)|Water level area]]
}}

{{SubsidenceOverlay feature attribute nav}}