Groundwater Prequel (Water Overlay): Difference between revisions

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Groundwater in the Tygron Platform is modeled in the form of a [[GeoTIFF]].
Groundwater in the Tygron Platform is modeled in the form of a [[GeoTiff]].


Groundwater is only used when the [[ground water (Water Overlay)|GROUND WATER attribute]] of the [[Water Overlay]] is true, meaning the [[underground model (Water Overlay)|underground model]] is active.
Groundwater is only used when the [[ground water (Water Overlay)|GROUND WATER attribute]] of the [[Water Overlay]] is true, meaning the [[underground model (Water Overlay)|underground model]] is active.


The groundwater GeoTIFF will dictate the initial distance between the surface and the watertable. A greater value in the GeoTIFF will mean a lower watertable. If there is no groundwater GeoTIFF present, the water table is dictated by the [[water level (Water Overlay)|WATER_LEVEL]] attribute of the [[Water level area (Water Overlay)|water level area]] instead.
The groundwater GeoTIFF will dictate the initial distance between the surface and the watertable. A greater value in the GeoTiff will mean a lower watertable. If there is no groundwater GeoTiff present, the water table is dictated by the [[water level (Water Overlay)|WATER_LEVEL]] attribute of the [[Water level area (Water Overlay)|water level area]] instead.


For the Netherlands, a number of groundwater GeoTIFFs are offered by default, based on data provided by The Netherlands Hydrological Instrument:
For the Netherlands, a number of groundwater GeoTiffs are offered by default, based on data provided by The Netherlands Hydrological Instrument:
* 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)

Revision as of 13:02, 12 June 2019

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 true, meaning the underground model is active.

The groundwater GeoTIFF will dictate the initial distance between the surface and the watertable. A greater value in the GeoTiff will mean a lower watertable. If there is no groundwater GeoTiff present, the water table is dictated by the WATER_LEVEL attribute of the water level area instead.

For the Netherlands, a number of groundwater GeoTiffs are offered by default, based on data provided by The Netherlands Hydrological Instrument:

  • NL_GHG_kk-nhi (Average highest watertable)
  • NL_GLG_kk-nhi (Average lowest watertable)
  • NL_GVG_kk-nhi (Average spring watertable)

How-to's

See also

Water Module
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Water Module
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Tutorials
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Overview
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Theory
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Benchmarks
Group
Weather
Rain m • Evaporation m
Prequels
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
Building attributes • Hydrological features • Hydraulic structures •  Terrain attributes • Model attributes • Results
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