# Groundwater level formula (Water Overlay)

Jump to navigation
Jump to search

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 ground terrain type, used here as a fraction.
- = The groundwater level, relative to datum. Also known as the watertable.
- = the datum height of the surface of cell c, set by the elevation or a Terrain elevation prequel.
- = The ground bottom distance of the cell c, defined by a Bottom distance prequel or a general GROUND_BOTTOM_DISTANCE_M of the Water Overlay.

## Related

The following topics are related to this formula.

- Features
- Groundwater Prequel (Water Overlay)
- Formulas
- Ground flow formula (Water Overlay)
- Ground evaporation formula (Water Overlay)
- Surface infiltration formula (Water Overlay)
- Ground infiltration formula (Water Overlay)
- Ground bottom flow formula (Water Overlay)
- Models
- Surface model (Water Overlay)
- Ground model (Water Overlay)
- Evaporation model (Water Overlay)
- Infiltration model (Water Overlay)