Surface infiltration formula (Water Overlay): Difference between revisions
Jump to navigation
Jump to search
mNo edit summary |
mNo edit summary |
||
| Line 24: | Line 24: | ||
* [[Surface model (Water Overlay)|Surface model]] | * [[Surface model (Water Overlay)|Surface model]] | ||
* [[Underground model (Water Overlay)|Underground model]] | * [[Underground model (Water Overlay)|Underground model]] | ||
* [[Infiltration model (Water Overlay)|Infiltration model]] | |||
{{Template:WaterOverlay_nav}} | {{Template:WaterOverlay_nav}} | ||
{{Water Module buttons}} | {{Water Module buttons}} | ||
Revision as of 13:28, 18 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 models
