Groundwater Prequel (Water Overlay): Difference between revisions
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Groundwater is only used when the [[ground water (Water Overlay)|GROUND WATER attribute]] of the [[Water Overlay]] is set to '''complete''', meaning the [[underground model (Water Overlay)|underground model]] is fully active. | Groundwater is only used when the [[ground water (Water Overlay)|GROUND WATER attribute]] of the [[Water Overlay]] is set to '''complete''', meaning the [[underground model (Water Overlay)|underground model]] is fully active. | ||
Values in the groundwater GeoTIFF represent the initial distance between the surface and the [[Ground_watertable_result_type_(Water_Overlay)|watertable]]. A greater value in the GeoTiff will result in a lower watertable. When a groundwater GeoTiff is not configured for the Water Overlay, the watertable is initialized using the [[water level (Water Overlay)|WATER_LEVEL]] attribute of the [[Water level area (Water Overlay)|water level area]] instead. For locations without water level areas, the water table is set to one meter below the [[ | Values in the groundwater GeoTIFF represent the initial distance between the surface and the [[Ground_watertable_result_type_(Water_Overlay)|watertable]]. A greater value in the GeoTiff will result in a lower watertable. When a groundwater GeoTiff is not configured for the Water Overlay, the watertable is initialized using the [[water level (Water Overlay)|WATER_LEVEL]] attribute of the [[Water level area (Water Overlay)|water level area]] instead. For locations without water level areas, the water table is set to one meter below the [[elevation model (Water Overlay)|surface]]. | ||
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 GeoTiffs are provided by default, based on data provided by The Netherlands Hydrological Instrumentarium: | ||
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{{GeoTiffSpec | {{GeoTiffSpec | ||
|title=Groundwater | |title=Groundwater | ||
|description=The depth of the ground water level, relative to the [[ | |description=The depth of the ground water level, relative to the [[elevation model (Water Overlay)|surface]]. | ||
|value=Groundwater level | |value=Groundwater level | ||
|unit=m below terrain height | |unit=m below terrain height | ||
Revision as of 08:33, 27 August 2020
Groundwater in the Tygron Platform is modeled in the form of a GeoTiff.
Groundwater is only used when the GROUND WATER attribute of the Water Overlay is set to complete, meaning the underground model is fully active. Values in the groundwater GeoTIFF represent the initial distance between the surface and the watertable. A greater value in the GeoTiff will result in a lower watertable. When a groundwater GeoTiff is not configured for the Water Overlay, the watertable is initialized using the WATER_LEVEL attribute of the water level area instead. For locations without water level areas, the water table is set to one meter below the surface.
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)
| Groundwater GeoTIFF specification | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Description | The depth of the ground water level, relative to the surface. | ||||||||
| Value | Groundwater level (m below terrain height) | ||||||||
How-to's
See also
- Group
- Weather
- Bottom distance • Bottom pressure • Bottom resistance • Ground conductivity • Groundwater datum • Groundwater depth • Manning • Max infiltration • Microrelief • Surface level • Surface u • Surface v • Terrain elevation • Unsaturated fraction
- Elevation
- Elevation
- Related