Groundwater level formula (Water Overlay): Difference between revisions

Revision as of 14:32, 10 July 2020

Groundwater level is calculated per cell.

WH_{underground}={\frac {W_{sat}}{WSP}}

WL_{underground}=WH_{underground}+H_{surface}-GBDM

Where:

WL_underground = The groundwater level, relative to datum. Also known as the watertable.
WH_underground = The height (column) of the saturated zone.

W_sat = The amount of water in the saturated zone. The height of the water column if the equivalent amount of water was placed on the surface.
H_surface = The surface height in the cell, relative to datum.
GBDM = The GROUND_BOTTOM_DISTANCE_M (effectively available height in the underground model).
WSP = The WATER_STORAGE_PERCENTAGE of the underground terrain type.

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@@ Line 1: / Line 1: @@
 Groundwater level is calculated per cell.
-: <math>WH_underground = \frac{W_sat}{WSP}</math>
+: <math>WH_{underground} = \frac{W_{sat}}{WSP}</math>
-: <math>WL_underground = WH_underground + H_surface - GBDM</math>
+: <math>WL_{underground} = WH_{underground} + H_{surface} - GBDM</math>
 Where: