Unsaturated fraction prequel (Water Overlay): Difference between revisions
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{{Overlay prequels|overlay=Water | {{Overlay prequels|overlay=Water|allowselflinks=true| | ||
<onlyinclude>{{Overlay prequels|type=row|overlay=Water | <onlyinclude>{{Overlay prequels|type=row|overlay=Water | ||
|prequel=UNSATURATED_FRACTION | |prequel=UNSATURATED_FRACTION | ||
| Line 6: | Line 6: | ||
|min=0 | |min=0 | ||
|max=1 | |max=1 | ||
}}</onlyinclude>}} | |||
}} | |||
</onlyinclude>}} | |||
{{article end | {{article end | ||
|notes= | |notes= | ||
* The values in this prequel grid are clamped between 0 and 1. No data values are not allowed, but negative values are interpreted as zero saturation. | * The values in this prequel grid are clamped between 0 and 1. No data values are not allowed, but negative values are interpreted as zero saturation. | ||
* 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: <br>Amount of water in the unsaturated zone = relative ground water depth * [[Terrain water storage percentage (Water Overlay)|WATER_STORAGE_PERCENTAGE]] * [[Unsaturated fraction (Water Overlay)|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 (Water Overlay)]] | * [[Unsaturated fraction (Water Overlay)]] | ||
Latest revision as of 14:58, 3 June 2022
| Name | Prequel | Underlying data | Unit | Range | No data | Description |
|---|---|---|---|---|---|---|
| Unsaturated fraction | UNSATURATED_FRACTION | Water Prequel | 0 to 1 | Clamped to range | Used for initializing the saturation of the unsaturated zone in the underground. |
Notes
- The values in this prequel grid are clamped between 0 and 1. No data values are not allowed, but negative values are interpreted as zero saturation.
- 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 = relative 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)
See also
- Group
- Weather
- 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