Low ground water prequel (Subsidence Overlay): Difference between revisions
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{{Overlay prequels|overlay=Subsidence|allowselflinks=true| | |||
<onlyinclude>{{Overlay prequels|type=row|overlay=Subsidence | |||
|prequel=LOW_GROUND_WATER_LEVEL | |||
|name=Low ground water | |||
|unit=m | |||
| | |description=The depth of the ground water level, relative to the [[Elevation model|surface]] | ||
|description=The depth of the ground water level, relative to the [[Elevation model|surface]] | |range= | ||
| | |defaultvalue= | ||
| | }}</onlyinclude> | ||
}} | }} | ||
The initial low groundwater level in the [[Subsidence Module]] at the start of the simulation can be initialized using a prequel [[Grid Overlay]]. | |||
In the Subsidence Overlay Wizard it is possible to select one of the Default datasets provided, to import and create a [[GeoTIFF Overlay]] or to do nothing and proceed with the next step. | |||
==Default data== | ==Default data== | ||
For the Netherlands, a number of groundwater | For the Netherlands, a number of groundwater [[GeoTIFF|GeoTIFFs]] are provided by default, based on data provided by The Netherlands Hydrological Instrumentarium: | ||
* NL_GHG_kk-nhi (Average highest watertable) | * NL_GHG_kk-nhi (Average highest watertable) | ||
* NL_GLG_kk-nhi (Average lowest watertable) | * NL_GLG_kk-nhi (Average lowest watertable) | ||
* NL_GVG_kk-nhi (Average spring watertable) | * NL_GVG_kk-nhi (Average spring watertable) | ||
These GeoTIFFs can be linked to the Subsidence Overlay using a [[GeoTIFF Overlay]] and referencing it with this prequel. | |||
{{article end | |||
|notes= | |||
* Specified as m below terrain height | |||
* When no prequel is specified, the water levels of [[Ground_water_level_area_(Subsidence_Overlay)|groundwater level areas]] are used to initialize groundwater levels. | |||
|seealso= | |||
* [[Ground water level area (Subsidence Overlay)]] | |||
}} | |||
{{SubsidenceOverlay raster nav}} | {{SubsidenceOverlay raster nav}} | ||
Latest revision as of 13:53, 23 February 2023
| Name | Prequel | Underlying data | Unit | Range | No data | Description |
|---|---|---|---|---|---|---|
| Low ground water | LOW_GROUND_WATER_LEVEL | Subsidence Prequel | m | The depth of the ground water level, relative to the surface |
The initial low groundwater level in the Subsidence Module at the start of the simulation can be initialized using a prequel Grid Overlay. In the Subsidence Overlay Wizard it is possible to select one of the Default datasets provided, to import and create a GeoTIFF Overlay or to do nothing and proceed with the next step.
Default data
For the Netherlands, a number of groundwater GeoTIFFs are provided by default, based on data provided by The Netherlands Hydrological Instrumentarium:
- NL_GHG_kk-nhi (Average highest watertable)
- NL_GLG_kk-nhi (Average lowest watertable)
- NL_GVG_kk-nhi (Average spring watertable)
These GeoTIFFs can be linked to the Subsidence Overlay using a GeoTIFF Overlay and referencing it with this prequel.
Notes
- Specified as m below terrain height
- When no prequel is specified, the water levels of groundwater level areas are used to initialize groundwater levels.
See also
