Surface infiltration formula (Water Overlay): Difference between revisions

Revision as of 11:14, 4 December 2020

Surface infiltration is calculated per cell.

First, the infiltration capacities are calculated:

$C_{water}=W_{surface}$

$C_{top}=max(I_{con},I_{surf})$

$I_{surf}=0$ if a construction is present

$I_{con}=0$ if no construction is present

Then the actual infiltration:

$\Delta w=min(C_{water},\Delta t\cdot C_{top})$

Where:

$C_{water}$ = The amount of infiltration that can take place based on the amount of water on the surface.
$C_{top}$ = The amount of infiltration that can take place based on the infiltration values present.

$W_{surface}$ = The amount of water (the water column) on the surface.
$I_{con}$ = The GROUND_INFILTRATION_MD of a construction on a specific cell (if present).
$I_{surf}$ = The GROUND_INFILTRATION_MD of the surface terrain type. This value should be interpreted as the vertical conductivity (Kv) of the sub-soil.

@@ Line 36: / Line 36: @@
 : [[Underground model (Water Overlay)|Underground model]]
 : [[Infiltration model (Water Overlay)|Infiltration model]]
-: [[Substance flow model (Water Overlay)|Substance flow model]]
+: [[Tracer flow model (Water Overlay)|Tracer flow model]]
 {{WaterOverlay formula nav}}