Groundwater level formula (Water Overlay): Difference between revisions

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Groundwater level is calculated per cell.
Groundwater level is calculated per cell.
: <math>h_u = \frac{\Delta w_s}{sp}</math>
: <math>wh_u = \frac{\Delta w_s}{sp}</math>
: <math>gl_u = h_u + B - d_b</math>
: <math>gl_u = h_u + B - d_b</math>


Where:
Where:
* <math>h_u</math> = The height (column) of the saturated zone.
* <math>wh_u</math> = The height (column) of the saturated zone.
* <math>\Delta w_s</math> = 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.
* <math>\Delta w_s</math> = 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.
* <math>sp</math> = The [[Terrain water storage percentage (Water Overlay)|WATER_STORAGE_PERCENTAGE]] of the underground terrain type, used here as a fraction.
* <math>sp</math> = The [[Terrain water storage percentage (Water Overlay)|WATER_STORAGE_PERCENTAGE]] of the underground terrain type, used here as a fraction.

Revision as of 14:44, 10 July 2020

Groundwater level is calculated per cell.

Where:

  • = The height (column) of the saturated zone.
  • = 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.
  • = The WATER_STORAGE_PERCENTAGE of the underground terrain type, used here as a fraction.
  • = The groundwater level, relative to datum. Also known as the watertable.

Related

The following topics are related to this formula.

Features
Groundwater
Formulas
Underground flow formula
Underground evaporation formula
Surface infiltration formula
Underground infiltration formula
Models
Surface model
Evaporation model
Infiltration model

Related models

Template:WaterOverlay nav