Unsaturated fraction (Water Overlay): Difference between revisions
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* The maximum storage capacity of underground terrains can be configured with the [[Terrain water storage percentage (Water Overlay)|Water storage percentage]] attribute. | * The maximum storage capacity of underground terrains can be configured with the [[Terrain water storage percentage (Water Overlay)|Water storage percentage]] attribute. | ||
* Note that this fraction is relative to the maximum water storage capacity of the terrain and not relative to the underground terrain volume. | * Note that this fraction is relative to the maximum water storage capacity of the terrain and not relative to the underground terrain volume. | ||
* This amounts to the following formula: Amount of water in the unsaturated zone = ground water depth * [[Terrain water storage percentage (Water Overlay)|WATER_STORAGE_PERCENTAGE]] * UNSATURATED_FRACTION. | |||
* For example, an underground terrain with a water storage of 25% and a ground water depth of 1 m and a configured unsaturated fraction of 0.25 will result in 0.0625 meter water in the unsaturated zone. (25% of 25% of the total volume of 1 m3) | |||
|seealso= | |seealso= | ||
* [[Unsaturated fraction prequel (Water Overlay)]] | * [[Unsaturated fraction prequel (Water Overlay)]] | ||
|howtos= | |howtos= | ||
* [[How to add and remove an Attribute]] | * [[How to add and remove an Attribute]] | ||
Revision as of 13:39, 10 February 2022
| Icon | Attribute | Unit | Range | Description | Default value |
|---|---|---|---|---|---|
| UNSATURATED_FRACTION | fraction | The initial fraction of the maximum storage capacity of the unsaturated zone which is filled with water. | 0 |
Notes
- The maximum storage capacity of underground terrains can be configured with the Water storage percentage attribute.
- Note that this fraction is relative to the maximum water storage capacity of the terrain and not relative to the underground terrain volume.
- This amounts to the following formula: Amount of water in the unsaturated zone = ground water depth * WATER_STORAGE_PERCENTAGE * UNSATURATED_FRACTION.
- For example, an underground terrain with a water storage of 25% and a ground water depth of 1 m and a configured unsaturated fraction of 0.25 will result in 0.0625 meter water in the unsaturated zone. (25% of 25% of the total volume of 1 m3)
How-to's
See also
- Group
- Model attributes
- Allowed water increase m • Avg shore width m • Avg terrain width m • Avg terrain storage m • Breach measurement distance m • Bridge elevation • Culvert dem threshold m • Design flood elevation m • Extended reconstruction • Ground bottom distance m • Ground bottom pressure m • Ground water • Ground water depth m • Ground watertable with surface • Impact flood threshold m • Impact range m • Increased resolution • Infiltration factor s
- Limit area • Limit rain • Max infiltration m • Max water bottom m • Microrelief storage fraction • Min max elevation • Object entry correction • Prequel surface level relative • Rise rate distance m • Sewer overflow threshold • Shoreline • Show duration flood level m • Stabilizer angle • Start date ms • Surface water • Surface water evaporation factor • Timeframe times • Timeframes • Unsaturated fraction • Weir dam multiplier • Weir move interval s • Weir move range m • Weir move step m
- Related