Subsidence Overlay overview - Revision history

Maxim@tygron.com at 05:49, 26 May 2025

2025-05-26T05:49:04Z

← Older revision		Revision as of 05:49, 26 May 2025
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			{{deprecated}}
	The [[Subsidence Overlay]] calculates subsidence by calculating oxidation and compaction in an iterative process to simulate the progression over a configurable number of years.		The [[Subsidence Overlay]] calculates subsidence by calculating oxidation and compaction in an iterative process to simulate the progression over a configurable number of years.

Frank@tygron.nl: /* Final water level */

2023-02-23T14:19:56Z

Final water level

← Older revision		Revision as of 14:19, 23 February 2023
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	{{SubsidenceOverlay_nav}}		{{SubsidenceOverlay_nav}}
	~~{{SubsidenceOverlay feature attribute nav}}~~

Frank@tygron.nl at 14:17, 23 February 2023

2023-02-23T14:17:08Z

← Older revision		Revision as of 14:17, 23 February 2023
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	The overlay can also write the final [[Water level output (Subsidence Overlay)\|surface water level]] to the [[Water area (Subsidence Overlay)\|water area]].		The overlay can also write the final [[Water level output (Subsidence Overlay)\|surface water level]] to the [[Water area (Subsidence Overlay)\|water area]].

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

Frank@tygron.nl: /* Final water level */

2023-02-23T14:10:37Z

Final water level

← Older revision		Revision as of 14:10, 23 February 2023
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	The overlay can also write the final [[Water level output (Subsidence Overlay)\|surface water level]] to the [[Water area (Subsidence Overlay)\|water area]].		The overlay can also write the final [[Water level output (Subsidence Overlay)\|surface water level]] to the [[Water area (Subsidence Overlay)\|water area]].

	{{~~Template:Subsidence Module buttons~~}}
			{{SubsidenceOverlay feature attribute nav}}

Frank@tygron.nl at 17:37, 31 January 2023

2023-01-31T17:37:13Z

← Older revision		Revision as of 17:37, 31 January 2023
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	\| mode=traditional		\| mode=traditional
	\| subsidence_step8.png \| A calculation cycle is repeated for each year the simulation is set to compute.		\| subsidence_step8.png \| A calculation cycle is repeated for each year the simulation is set to compute.
	\| subsidence_step3.png \| 3: Oxidation is ~~dependant~~ on configured [[Parameter a recalculation formula (Subsidence Overlay)\|climate model]], [[High ground water level ~~GeoTIFF~~ (Subsidence Overlay)\|high-]] and [[Low ground water level ~~GeoTIFF~~ (Subsidence Overlay)\|low ground water levels]], [[Peat fraction (Subsidence Overlay)\|peat fraction]] and [[Clay thickness ~~GeoTIFF~~ (Subsidence Overlay)\|clay thickness]].		\| subsidence_step3.png \| 3: Oxidation is dependent on configured [[Parameter a recalculation formula (Subsidence Overlay)\|climate model]], [[High ground water level prequel (Subsidence Overlay)\|high-]] and [[Low ground water level prequel (Subsidence Overlay)\|low ground water levels]], [[Peat fraction (Subsidence Overlay)\|peat fraction]] and [[Clay thickness prequel (Subsidence Overlay)\|clay thickness]].
	\| subsidence_step4.png \| 4: Compaction is ~~dependant~~ on added soil, settling into itself and pre-existing terrain.		\| subsidence_step4.png \| 4: Compaction is dependent on added soil, settling into itself and pre-existing terrain.
	}}<br>		}}<br>
	{{gallery		{{gallery

Frank@tygron.nl at 12:45, 17 January 2022

2022-01-17T12:45:42Z

← Older revision		Revision as of 12:45, 17 January 2022
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	\| mode=traditional		\| mode=traditional
	\| subsidence_step8.png \| A calculation cycle is repeated for each year the simulation is set to compute.		\| subsidence_step8.png \| A calculation cycle is repeated for each year the simulation is set to compute.
	\| subsidence_step3.png \| 3: Oxidation is dependant on configured [[Parameter a recalculation formula (Subsidence Overlay)\|climate model]], [[High ground water level ~~geotiff~~ (Subsidence Overlay)\|high-]] and [[Low ground water level ~~geotiff~~ (Subsidence Overlay)\|low ground water levels]], [[Peat fraction (Subsidence Overlay)\|peat fraction]] and [[Clay thickness ~~geotiff~~ (Subsidence Overlay)\|clay thickness]].		\| subsidence_step3.png \| 3: Oxidation is dependant on configured [[Parameter a recalculation formula (Subsidence Overlay)\|climate model]], [[High ground water level GeoTIFF (Subsidence Overlay)\|high-]] and [[Low ground water level GeoTIFF (Subsidence Overlay)\|low ground water levels]], [[Peat fraction (Subsidence Overlay)\|peat fraction]] and [[Clay thickness GeoTIFF (Subsidence Overlay)\|clay thickness]].
	\| subsidence_step4.png \| 4: Compaction is dependant on added soil, settling into itself and pre-existing terrain.		\| subsidence_step4.png \| 4: Compaction is dependant on added soil, settling into itself and pre-existing terrain.
	}}<br>		}}<br>
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	==Output==		==Output==
	The output of all result types of the overlay is in meters. The results can be [[Grid overlay#Export as ~~GeoTiff~~\|exported as ~~GeoTiff~~]].		The output of all result types of the overlay is in meters. The results can be [[Grid overlay#Export as GeoTIFF\|exported as GeoTIFF]].
	===Timeframes===		===Timeframes===
	The amount of timeframes generated for the subsidence overlay are determined by [[Years (Subsidence Overlay)]] divided by [[Years per timeframe (Subsidence Overlay)]]		The amount of timeframes generated for the subsidence overlay are determined by [[Years (Subsidence Overlay)]] divided by [[Years per timeframe (Subsidence Overlay)]]

Frank@tygron.nl at 13:39, 28 May 2021

2021-05-28T13:39:17Z

← Older revision		Revision as of 13:39, 28 May 2021
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	\| mode=traditional		\| mode=traditional
	\| subsidence_step5.png \| 5: Subsidence is computed per cell, based on oxidation and compaction.		\| subsidence_step5.png \| 5: Subsidence is computed per cell, based on oxidation and compaction.
	\| subsidence_step6.png \| 6: Water levels are [[indexation (Subsidence Overlay)\|indexed]] (if configured as such), meaning they are adjusted to compensate for subsidence so their height relative to the surface remains the same, or less ~~when~~ indexation ~~is not for the full 100 percent~~.		\| subsidence_step6.png \| 6: Water levels are [[indexation (Subsidence Overlay)\|indexed]] (if configured as such), meaning they are adjusted to compensate for subsidence so their height relative to the surface remains the same, or less depending on the indexation percentage.
	\| subsidence_step7.png \| 7: Ground water levels are recalculated based on the adjusted water levels and the lowered surface.		\| subsidence_step7.png \| 7: Ground water levels are recalculated based on the adjusted water levels and the lowered surface.
	}}		}}

Frank@tygron.nl at 13:38, 28 May 2021

2021-05-28T13:38:36Z

← Older revision		Revision as of 13:38, 28 May 2021
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	\| width=250px		\| width=250px
	\| mode=traditional		\| mode=traditional
	\| subsidence_step5.png \| 5: Subsidence is ~~computer~~ per cell, based on oxidation and compaction.		\| subsidence_step5.png \| 5: Subsidence is computed per cell, based on oxidation and compaction.
	\| subsidence_step6.png \| 6: Water levels are [[indexation (Subsidence Overlay)\|indexed]] (if configured as such), meaning they are adjusted to compensate for subsidence so their height relative to the surface remains the same.		\| subsidence_step6.png \| 6: Water levels are [[indexation (Subsidence Overlay)\|indexed]] (if configured as such), meaning they are adjusted to compensate for subsidence so their height relative to the surface remains the same, or less when indexation is not for the full 100 percent.
	\| subsidence_step7.png \| 7: Ground water levels are recalculated based on the adjusted water levels and the lowered surface.		\| subsidence_step7.png \| 7: Ground water levels are recalculated based on the adjusted water levels and the lowered surface.
	}}		}}

Frank@tygron.nl: /* Calculation model steps */

2021-05-28T13:12:24Z

Calculation model steps

← Older revision		Revision as of 13:12, 28 May 2021
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	{{gallery		{{gallery
	\| mode=traditional		\| mode=traditional
	\| width=~~200px~~		\| width=250px
	\| subsidence_step1.png \| The groundwater situation is determined based on an initial groundwater input, and changes to surface water policy.		\| subsidence_step1.png \| The groundwater situation is determined based on an initial groundwater input, and changes to surface water policy.
	\| subsidence_step2.png \| Terrain properties are determined through present [[Terrain Type]]s, and otherwise based on defaults.		\| subsidence_step2.png \| Terrain properties are determined through present [[Terrain Type]]s, and otherwise based on defaults.
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	Next, a number of steps are repeated to simulate the yearly subsidence, and to update the intermediately changing parameters for the calculation accordingly. These steps are repeated n times, where n is the amount of [[Years (Subsidence Overlay)\|years]] configured.		Next, a number of steps are repeated to simulate the yearly subsidence, and to update the intermediately changing parameters for the calculation accordingly. These steps are repeated n times, where n is the amount of [[Years (Subsidence Overlay)\|years]] configured.
	{{gallery		{{gallery
	\| width=~~200px~~		\| width=250px
	\| mode=traditional		\| mode=traditional
	\| subsidence_step8.png \| A calculation cycle is repeated for each year the simulation is set to compute.		\| subsidence_step8.png \| A calculation cycle is repeated for each year the simulation is set to compute.
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	}}<br>		}}<br>
	{{gallery		{{gallery
	\| width=~~200px~~		\| width=250px
	\| mode=traditional		\| mode=traditional
	\| subsidence_step5.png \| 5: Subsidence is computer per cell, based on oxidation and compaction.		\| subsidence_step5.png \| 5: Subsidence is computer per cell, based on oxidation and compaction.

Frank@tygron.nl: /* Calculation model steps */

2021-05-28T12:58:14Z

Calculation model steps

← Older revision		Revision as of 12:58, 28 May 2021
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	{{gallery		{{gallery
	\| mode=traditional		\| mode=traditional
	\| ~~widths~~=200px		\| width=200px
	\| subsidence_step1.png \| The groundwater situation is determined based on an initial groundwater input, and changes to surface water policy.		\| subsidence_step1.png \| The groundwater situation is determined based on an initial groundwater input, and changes to surface water policy.
	\| subsidence_step2.png \| Terrain properties are determined through present [[Terrain Type]]s, and otherwise based on defaults.		\| subsidence_step2.png \| Terrain properties are determined through present [[Terrain Type]]s, and otherwise based on defaults.
Line 11:		Line 11:
	Next, a number of steps are repeated to simulate the yearly subsidence, and to update the intermediately changing parameters for the calculation accordingly. These steps are repeated n times, where n is the amount of [[Years (Subsidence Overlay)\|years]] configured.		Next, a number of steps are repeated to simulate the yearly subsidence, and to update the intermediately changing parameters for the calculation accordingly. These steps are repeated n times, where n is the amount of [[Years (Subsidence Overlay)\|years]] configured.
	{{gallery		{{gallery
	\| ~~widths~~=200px		\| width=200px
	\| mode=traditional		\| mode=traditional
	\| subsidence_step8.png \| A calculation cycle is repeated for each year the simulation is set to compute.		\| subsidence_step8.png \| A calculation cycle is repeated for each year the simulation is set to compute.