Hydrological features (Water Overlay)
The water system can be enhanced with a number of hydrological features, which can be loaded in as areas. These hydrological features form special properties or modifications on the hydrological system.
| Icon | Name | Category | Type | Presence
Template:WaterOverlay table row Template:WaterOverlay table row Template:WaterOverlay table row Template:WaterOverlay table row Template:WaterOverlay table row |
|---|
Inundation
An inundation is an initial placement of a quantity of water. This differs from the water level areas in that an inundation level allows you to place water anywhere on the surface.
| Attribute | Unit | Description | Default (when attribute is not present) |
|---|---|---|---|
| INUNDATION_LEVEL | m + datum | The height of the water. | n/a |
Aquifer
The aquifer is an additional definition for the underground, allowing for underground horizontal flow different from the underground terrain's GROUND_INFILTRATION_MD.
| Attribute | Unit | Description | Default (when attribute is not present) |
|---|---|---|---|
| AQUIFER_KD | m²/day | The hydraulic conductivity of the aquifer, which dictates the speed at which water can flow horizontally through the underground. | n/a |
| AQUIFER_HEIGHT | m | n/a |
Note that the aquifer only functions if its hydraulic conductivity is greater than 0. If it is 0 or less the aquifer is disregarded, and the GROUND_INFILTRATION_MD of the underground terrain is used.