Low ground water prequel (Subsidence Overlay): Difference between revisions

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The initial low groundwater level in the [[Subsidence Module]] at the start of the simulation can be initialized using a [[GeoTIFF]]. <br>
{{Overlay prequel|overlay=Subsidence|suppresscategory=true|allowselflinks=true|
In the Subsidence Overlay Wizard it is possible to select one of the Default datasets provided, to import a [[GeoTIFF]] or to do nothing and proceed with the next step.
{{Overlay prequel|overlay=Subsidence|type=row|prequel=LOW_GROUND_WATER_LEVEL|name=Low ground water prequel|unit=m below terrain height|description=The depth of the ground water level, relative to the [[Elevation model|surface]] }}
}}


 
The initial low groundwater level in the [[Subsidence Module]] at the start of the simulation can be initialized using a prequel [[Grid Overlay]].
{{GeoTiffSpec
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.  
|title=Low Groundwater
|description=The depth of the ground water level, relative to the [[Elevation model|surface]].
|value=Low Groundwater level
|unit=m below terrain height
}}


==Default data==
==Default data==
For the Netherlands, a number of groundwater GeoTIFFs are provided by default, based on data provided by The Netherlands Hydrological Instrumentarium:
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.


==Notes==
==Notes==
* When no [[GeoTIFF]] is selected or imported, the water levels of [[Ground_water_level_area_(Subsidence_Overlay)|groundwater level areas]] are used to initialize groundwater levels.
* 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.


==See also==
==See also==
* [[Ground_water_level_area_(Subsidence_Overlay)|Groundwater level areas]]
* [[Ground_water_level_area_(Subsidence_Overlay)|Groundwater level areas]]
{{SubsidenceOverlay raster nav}}

Revision as of 16:49, 10 February 2022

Name Prequel Description
Low ground water prequel LOW_GROUND_WATER_LEVEL 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

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