How to configure bottom boundary flow to vary over time (Water Overlay): Difference between revisions

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When working with the [[Underground model (Water Overlay)|full groundwater model]] of the [[Water Overlay]], underground seepage may present a significant factor in the underground water balance. However, especially over longer times, the effects of external seepage can vary. For these situations, it is possible to introduce a time-dependant [[seepage fluctuation (Water Overlay)|variation to the seepage]].
When working with the [[Ground model (Water Overlay)|full groundwater model]] of the [[Water Overlay]], ground bottom flow from deeper ground layers through the bottom boundary may present a significant factor in the ground water balance. However, especially over longer times, the effects of external bottom flow can vary. For these situations, it is possible to introduce a time-dependant [[Ground bottom pressure m (Water Overlay)|variation to ground bottom pressure]].


For seepage to be functional, the following should be prepared beforehand:
For bottom flow to be functional, the following should be prepared beforehand:
* The [[seepage p prequel (Water Overlay)|Seepage pressure ]] and [[Seepage resistance prequel (Water Overlay)|Seepage resistance]] overlays based on GeoTIFFs.
* The [[Bottom pressure prequel (Water Overlay)|Bottom pressure ]] and [[Bottom resistance prequel (Water Overlay)|Bottom resistance]] overlays based on GeoTIFFs.
* A [[csv]] with a {{time sequence start}} [[time sequence (Water Overlay)|time sequence]] for the [[Seepage fluctuation (Water Overlay)|seepage fluctuation]].
* A [[csv]] with a {{time sequence start}} [[time sequence (Water Overlay)|time sequence]] for the [[Ground bottom pressure m (Water Overlay)|ground bottom pressure]], in meters.


{{editor location|Overlay wizard|Water Overlay|Seepage}}
{{editor location|Overlay wizard|Water Overlay|Bottom boundary}}


{{howto|title=configure variable seepage
{{howto|title=configure variable bottom boundary flow
| Open the [[Water Overlay Wizard]], and proceed to the seepage step.
| Open the [[Water Overlay Wizard]], and proceed to the ''bottom boundary'' step.
| Opt to configure seepage.
| Opt to configure bottom head pressure and resistance.
| For the pressure GeoTIFF, import your [[seepage p prequel (Water Overlay)|GeoTIFF Overlay with seepage pressure values]].
| For the pressure GeoTIFF, import your [[Bottom pressure prequel (Water Overlay)|GeoTIFF Overlay with head pressure values]].
| Ensure the uploaded GeoTIFF is selected in the dropdown.
| Ensure the uploaded GeoTIFF is selected in the dropdown.
| For the resistance GeoTIFF, import your [[seepage c prequel (Water Overlay)|GeoTIFF Overlay with seepage resistance values]].
| For the resistance GeoTIFF, import your [[Bottom resistance prequel (Water Overlay)|GeoTIFF Overlay with resistance values]].
| Ensure the uploaded GeoTIFF is selected in the dropdown.
| Ensure the uploaded GeoTIFF is selected in the dropdown.
| Set the seepage factor to "dynamic", and opt to select a csv.
| Set the Global pressure to "dynamic", and opt to select a csv.
| [[How to import a time sequence with a CSV|Import the prepared csv]].
| [[How to import a time sequence with a CSV|Import the prepared csv]].
| Close the import window.
| Close the import window.
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{{article end
{{article end
|howtos=
* [[How to import a time sequence with a CSV]]
* [[How to configure constant bottom boundary flow (Water Overlay)]]
|seealso=
|seealso=
* [[How to import a time sequence with a CSV]]
* [[Bottom pressure prequel (Water Overlay)]]  
* [[How to configure constant seepage (Water Overlay)]]
* [[Bottom resistance prequel (Water Overlay)]]  
}}
}}
[[Category:How-to's]][[Category:Water]]

Latest revision as of 16:57, 30 January 2024

When working with the full groundwater model of the Water Overlay, ground bottom flow from deeper ground layers through the bottom boundary may present a significant factor in the ground water balance. However, especially over longer times, the effects of external bottom flow can vary. For these situations, it is possible to introduce a time-dependant variation to ground bottom pressure.

For bottom flow to be functional, the following should be prepared beforehand:

Editor → Current Situation (Ribbon tab) → Overlays (Ribbon bar) → Water Overlay (Left panel) → Configuration Wizard (Right panel) → Bottom boundary
How to configure variable bottom boundary flow:
  1. Open the Water Overlay Wizard, and proceed to the bottom boundary step.
  2. Opt to configure bottom head pressure and resistance.
  3. For the pressure GeoTIFF, import your GeoTIFF Overlay with head pressure values.
  4. Ensure the uploaded GeoTIFF is selected in the dropdown.
  5. For the resistance GeoTIFF, import your GeoTIFF Overlay with resistance values.
  6. Ensure the uploaded GeoTIFF is selected in the dropdown.
  7. Set the Global pressure to "dynamic", and opt to select a csv.
  8. Import the prepared csv.
  9. Close the import window.
  10. Close the configuration wizard, and recalculate the Overlay.

How-to's

See also

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