Hydrological attributes of terrains (Water Overlay): Difference between revisions

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[[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.
[[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 [[hydrological attributes of buildings (Water Overlay)|building]] is present with overwriting values.


{| class="wikitable"
{{terrain attributes|suppresscategory=true|allowselflinks=true|
! Icon
{{:terrain hydraulic conductivity md (Water Overlay)}}
! Attribute
{{:terrain hydraulic conductivity with thickness md (Water Overlay)}}
! Unit
{{:terrain ground infiltration md (Water Overlay)}}
! Type
{{:terrain root depth m (Water Overlay)}}
! Description
{{:terrain water (Water Overlay)}}
|-
{{:terrain water evaporation factor (Water Overlay)}}
|
{{:terrain water manning (Water Overlay)}}
|[[Terrain_water_(Water_Overlay)|WATER]]
{{:terrain water microrelief m (Water Overlay)}}
|boolean
{{:terrain water storage percentage (Water Overlay)}}
|Surface
}}
|Whether the specified terrain is a water terrain.
 
|-
{{article end
|
|notes=
|[[Terrain_root_depth_m_(Water_Overlay)|ROOT_DEPTH_M]]
* In general, surface [[Terrain Attributes]] can be overridden by [[hydrological attributes of buildings (Water Overlay)|attributes of building]]s on the surface, even when the attribute values of the building are set to 0.
|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]]
|[[Terrain_water_evaporation_factor_(Water_Overlay)|WATER_EVAPORATION_FACTOR]]
|factor
|Surface
|How fast this terrain can evaporate water from the underground. The [[Weather|weather]] evaporation speed is multiplied by this factor to determine the rate of evaporation.
|-
|[[File:waterwizard_icon_water_infiltration.png]]
|[[Terrain_ground_infiltration_md_(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]]
|[[Terrain_ground_infiltration_md_(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]]
|[[Terrain_water_manning_(Water_Overlay)|WATER_MANNING]]
|s/(m<sup>1/3</sup>)
|Surface
|The Gauckler–Manning coefficient of the terrain.
|}  


{{WaterOverlay terrain attribute nav}}
{{WaterOverlay terrain attribute nav}}
[[Category:Water Module]]

Latest revision as of 17:15, 27 February 2024

Terrains 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 building is present with overwriting values.

Icon Attribute Unit Layer Range Description
Waterwizard icon water hydraulic conductivity.png HYDRAULIC_CONDUCTIVITY_MD m/day Ground The hydraulic conductivity (symbolically represented as K) is defined as the speed by which water moves through the saturated zone horizontally.
Waterwizard icon water hydraulic conductivity.png HYDRAULIC_CONDUCTIVITY_WITH_THICKNESS_MD m2/day Ground The hydraulic conductivity (symbolically represented as KD) is defined as the speed by which water moves through the saturated layer horizontally, multiplied with the layer thickness.
Waterwizard icon water infiltration.png GROUND_INFILTRATION_MD m/day Surface The speed at which water can flow vertically from the surface to the unsaturated zone.
Waterwizard icon water infiltration.png GROUND_INFILTRATION_MD m/day Ground The speed at which water can flow vertically from the surface to the unsaturated zone.
Waterwizard icon water root depth m.png ROOT_DEPTH_M m Surface The depth of the roots of the terrain type. This depth is used to determine whether evaporation will occur from the groundwater.
WATER nominal Surface Whether this Terrain Type represents a form of water (and what type).
Waterwizard icon evaporation factor.png WATER_EVAPORATION_FACTOR factor Surface How fast this terrain can evaporate water from the ground. The weather's evaporation speed is multiplied by this factor to determine the rate of evaporation.
Waterwizard icon manning.png WATER_MANNING s/(m1/3) Surface The Gauckler–Manning coefficient of the terrain, which is a measure of surface roughness. Used in the surface flow computation of the Water Overlay.
Waterwizard icon microrelief.png WATER_MICRORELIEF_M m Surface 0 - 0.255 The defined Microrelief in meters, which captures surface water. When captured, surface flow is halted until the defined threshold is reached. Evaporation and infiltration for water captured in Mircrorelief is still allowed.
Waterwizard icon water storage.png WATER_STORAGE_PERCENTAGE fraction (m3/m3) Ground The percentage (as a fraction) of the ground layer volume which can be filled with water. A lower percentage means the ground layer will be able to store less water, and the saturated zone will rise higher with the same amount of water in the ground layer.

Notes

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Group
Terrain attributes
Ground infiltration md •  Hydraulic conductivity md •  Hydraulic conductivity with thickness md •  Root depth m •  Water •  Water evaporation factor •  Water manning •  Water microrlief m •  Water storage percentage
Related
Building attributes • Hydrological features • Hydraulic structures • Model attributes • Results • Simulation data
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