Surface infiltration formula (Water Overlay): Difference between revisions
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* I<sub>surf</sub> = The [[Terrain ground infiltration md (Water Overlay)|GROUND_INFILTRATION_MD]] of the surface terrain type. This value should be interpreted as the vertical conductivity (Kv) of the sub-soil. | * I<sub>surf</sub> = The [[Terrain ground infiltration md (Water Overlay)|GROUND_INFILTRATION_MD]] of the surface terrain type. This value should be interpreted as the vertical conductivity (Kv) of the sub-soil. | ||
==Related | ==Related== | ||
The following topics are related to this formula. | |||
; Formulas | |||
: [[Surface water level formula (Water Overlay)|Surface water level formula]] | |||
: [[Groundwater level formula (Water Overlay)|Groundwater level formula]] | |||
: [[Underground infiltration formula (Water Overlay)|Underground infiltration formula]] | |||
; Models | |||
: [[Surface model (Water Overlay)|Surface model]] | |||
: [[Underground model (Water Overlay)|Underground model]] | |||
: [[Infiltration model (Water Overlay)|Infiltration model]] | |||
: [[Substance flow model (Water Overlay)|Substance flow model]] | |||
{{Template:WaterOverlay_nav}} | {{Template:WaterOverlay_nav}} | ||
{{Water Module buttons}} | {{Water Module buttons}} | ||
Revision as of 08:25, 19 June 2019
Surface infiltration is calculated per cell.
First, the infiltration capacities are calculated:
- Cwater = Wsurface
- Ctop = max( Icon, Isurf )
- Isurf = 0 if a construction is present
- Icon = 0 if no construction is present
Then the actual infiltration:
- Δw = min( Cwater , Δt * Ctop)
Where:
- Δw = The surface infiltration which takes place.
- Δt = Computational timestep.
- Cwater = The amount of infiltration that can take place based on the amount of water on the surface.
- Ctop = The amount of infiltration that can take place based on the infiltration values present.
- Wsurface = The amount of water (the water column) on the surface.
- Icon = The GROUND_INFILTRATION_MD of a construction on a specific cell (if present).
- Isurf = The GROUND_INFILTRATION_MD of the surface terrain type. This value should be interpreted as the vertical conductivity (Kv) of the sub-soil.
Related
The following topics are related to this formula.
- Formulas
- Surface water level formula
- Groundwater level formula
- Underground infiltration formula
- Models
- Surface model
- Underground model
- Infiltration model
- Substance flow model
