Surface infiltration formula (Water Overlay): Difference between revisions

Revision as of 07:44, 17 October 2019

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:

Δw = min( C_water , Δt * C_top)

Where:

$C_{w a t e r}$ = The amount of infiltration that can take place based on the amount of water on the surface.
$C_{t o p}$ = The amount of infiltration that can take place based on the infiltration values present.

$W_{s u r f a c e}$ = The amount of water (the water column) on the surface.
$I_{c o n}$ = The GROUND_INFILTRATION_MD of a construction on a specific cell (if present).
$I_{s u r f}$ = The GROUND_INFILTRATION_MD of the surface terrain type. This value should be interpreted as the vertical conductivity (Kv) of the sub-soil.

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

@@ Line 17: / Line 17: @@
 * <math>C_{top}</math> = The amount of infiltration that can take place based on the infiltration values present.
-* W<sub>surface</sub> = The amount of water (the water column) on the surface.
+* <math>W_{surface}</math> = The amount of water (the water column) on the surface.
-* I<sub>con</sub> = The [[Terrain ground infiltration md (Water Overlay)|GROUND_INFILTRATION_MD]] of a construction on a specific cell (if present).
+* <math>I_{con}</math> = The [[Terrain ground infiltration md (Water Overlay)|GROUND_INFILTRATION_MD]] of a construction on a specific cell (if present).
-* 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.
+* <math>I_{surf}</math> = 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==