View source for Hydrological attributes of terrains (Water Overlay)

[[Terrain]]s in a project have a number of hydrological properties which can influence the flow of water in a project. Because there is always both surface and underground terrain defined for the entirety of the project area, all cells are affected by all properties of terrains, unless a construction is present with overwriting values.

{| class="wikitable"
| Icon
! Attribute
! Unit
! Terrain type
! Description
|-
|
|[[Water_(Terrain)_(Water_Overlay)|WATER]]
|boolean
|Surface
|Whether the specified terrain is a water terrain.
|-
|
|[[Root_depth_m_(Terrain)_(Water_Overlay)|ROOT_DEPTH_M]]
|m
|Surface
|The depth of the roots of this surface terrain, relative to the surface. Water can be drawn from the underground and evaporated if the roots can reach it.
|-
|[[File:waterwizard_icon_evaporation_factor.png]]
|[[Water_evaporation_factor_(Terrain)_(Water_Overlay)|WATER_EVAPORATION_FACTOR]]
|factor
|Surface
|How fast this terrain can evaporate water from the underground. The {{inlink|weather}}'s evaporation speed is multiplied by this factor to determine the rate of evaporation.
|-
|[[File:waterwizard_icon_water_infiltration.png]]
|[[Ground_infiltration_md_(Terrain)_(Water_Overlay)|GROUND_INFILTRATION_MD]]
|m/day
|Surface
|The speed at which water can flow vertically from the surface to the underground unsaturated zone.
|-
|[[File:waterwizard_icon_water_infiltration.png]]
|[[Ground_infiltration_md_(Terrain)_(Water_Overlay)|GROUND_INFILTRATION_MD]]
|m/day
|Underground
|The speed at which water can flow vertically from the underground unsaturated zone to the underground saturated zone, and horizontally through across the saturated zone.
|-
|[[File:waterwizard_icon_manning.png]]
|[[Water_manning_(Terrain)_(Water_Overlay)|WATER_MANNING]]
|s/(m<sup>1/3</sup>)
|Surface
|The Gauckler–Manning coefficient of the terrain.
|}

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