How to add Subsidence (Water Overlay): Difference between revisions

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{{unavailable|{{tygron}} is looking at scheduling the restoration of Water Overlay subsidence on its roadmap.}}
{{stub}}
 
It is possible to include the effects of subsidence in the [[Water Overlay]]'s calculations by using a [[Combo Overlay]] to precompute the resulting [[Elevation model]], and setting the result as the [[Terrain elevation prequel (Water Overlay)|terrain elevation prequel]] of the [[Water Overlay]].
For the calculation of the effects of a severe rainfall, effects of subsidence can be included, such as the recalculated water levels and the changed ground levels. For now, ground water levels affected by the subsidence are not included. 
 
{{Editor steps|title=include subsidence|Add the [[Subsidence Overlay]]. Take note of when to use and how to configure the subsidence overlay.|In the [[right panel]], select the "Keys" tab|Select the "Area attribute: output level (m)". Choose a new attribute, for example the WATER_LEVEL_OUTPUT attribute, to write the new water levels to. |In the Rainfall overlay in the [[right panel]], select the "Keys" tab.|Choose the overlay for the subsidence model you want to use in the "Include Subsidence" form.|Also select the newly created attribute containing the water levels in the "Area Attribute: Water Level (m)" form.|Go to the "General" tab and recalculate the grid.}}
 
 
<gallery mode="nolines">
File:Subsidence_attribute.JPG|Create a new attribute containing the recalculated water levels.
File:Include_subsidence.JPG|Include the subsidence overlay and select the new water level attribute.
</gallery>


{{article end
{{article end
| notes=* Take care not to set the WATER_LEVEL_OUTPUT [[Overlay Key]] of the [[Subsidence Overlay]] to the same [[Attribute]] as the WATER_LEVEL used as the input for the [[Subsidence Overlay]] itself. Otherwise, the calculation will repeatedly change its own input, leading to inconsistent results.
| notes=
* By setting up two identical [[Water Overlay]]s, one connected to the [[Subsidence Overlay]] and one not, it's possible to investigate in detail the effects of subsidence on the water system.
* By setting up two identical [[Water Overlay]]s, one taking into account [[Subsidence Overlay|Subsidence]] and one not, it's possible to investigate in detail the effects of subsidence on the water system.
| seealso=* [[Water Overlay]]
| seealso=* [[Water Overlay]]
* [[Subsidence Overlay]]
* [[Subsidence Overlay]]
* [[Combo Overlay]]
}}
}}


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Revision as of 10:08, 17 June 2022

This article is a stub.

It is possible to include the effects of subsidence in the Water Overlay's calculations by using a Combo Overlay to precompute the resulting Elevation model, and setting the result as the terrain elevation prequel of the Water Overlay.

Notes

  • By setting up two identical Water Overlays, one taking into account Subsidence and one not, it's possible to investigate in detail the effects of subsidence on the water system.

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