Terrain min unsaturated fraction (Water Overlay): Difference between revisions
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*When the ground water (saturated zone) drops below the [[Ground water max uptake depth m (Water Overlay)|GROUND_WATER_MAX_UPTAKE_DEPTH_M]] this uptake is stopped. | *When the ground water (saturated zone) drops below the [[Ground water max uptake depth m (Water Overlay)|GROUND_WATER_MAX_UPTAKE_DEPTH_M]] this uptake is stopped. | ||
*Can also be adjusted via a [[Min unsaturated fraction prequel (Water Overlay)]]. | *Can also be adjusted via a [[Min unsaturated fraction prequel (Water Overlay)]]. | ||
* This 'min fraction' can also be dynamically adjusted, based on other factors, during the simulation using [[Simulation_Core|iterations]]. | |||
|howtos= | |howtos= | ||
* [[How to add and remove an Attribute]] | * [[How to add and remove an Attribute]] | ||
Latest revision as of 11:34, 4 December 2025
| Icon | Attribute | Unit | Layer | Range | Description |
|---|---|---|---|---|---|
 |
MIN_UNSATURATED_FRACTION | m | Underground | 0 - 1 | This values defines the minimal water fraction stored in the unsaturated zone. |
Notes
- This minimal fraction prevents the unsaturated zone from running dry. Default value is around the 10%.
- Water either comes from above (surface) or uptake from below (saturated zone) to reach this value.
- When the ground water (saturated zone) drops below the GROUND_WATER_MAX_UPTAKE_DEPTH_M this uptake is stopped.
- Can also be adjusted via a Min unsaturated fraction prequel (Water Overlay).
- This 'min fraction' can also be dynamically adjusted, based on other factors, during the simulation using iterations.
How-to's
See also
- Group
- Terrain attributes