Terrain min unsaturated fraction (Water Overlay)
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| 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
