Unsaturated fraction prequel (Water Overlay)

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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

Water Module
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Water Module
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Tutorials
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Overview
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Theory
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Benchmarks
Group
Weather
Rain m • Evaporation m
Prequels
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
Building attributes • Hydrological features • Hydraulic structures •  Terrain attributes • Model attributes • Results
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