Surface infiltration formula (Water Overlay)
Revision as of 08:25, 19 June 2019 by Rudolf@tygron.nl (talk | contribs)
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
