Low ground water prequel (Subsidence Overlay): Difference between revisions
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==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 16:50, 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
