Groundwater level formula (Water Overlay): Difference between revisions

Revision as of 14:32, 10 July 2020

Groundwater level is calculated per cell.

Failed to parse (unknown function "\fract"): {\displaystyle WH_underground = \fract{W_sat}{WSP}}

WL_{u}nderground=WH_{u}nderground+H_{s}urface-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.
-: ''WH<sub>underground</sub> = W<sub>sat</sub> / WSP''
+: <math>WH_underground = \fract{W_sat}{WSP}</math>
-: ''WL<sub>underground</sub> = WH<sub>underground</sub> + H<sub>surface</sub> - GBDM''
+: <math>WL_underground = WH_underground + H_surface - GBDM</math>
 Where: