Surface infiltration formula (Water Overlay)

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Surface infiltration is calculated per cell. First, the infiltration capacities are calculated:

Then the actual infiltration:


= The average infiltration capacity based on constructions on top of the surface, based on GROUND_INFILTRATION_MD defined in either the building or function.
= The average infiltration capacity based on the surface terrain, defined by GROUND_INFILTRATION_MD. This value should be interpreted as the vertical conductivity (Kv) of the sub-soil.
= The average infiltration capacity on top of the surface.
= The average infiltration capacity below the surface.
= The infiltration capacity from surface to the unsaturated zone.
= The surface infiltration which takes place.
= The amount of water on the surface. Also known as the water column.
= Computational timestep.


The following topics are related to this formula.

Surface water level formula
Groundwater level formula
Underground infiltration formula
Surface model
Underground model
Infiltration model
Tracer flow model