Terrain ground infiltration md (Water Overlay): Difference between revisions

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(Created page with "{| class="wikitable" ! Attribute ! Unit ! Terrain type ! Description |- |{{anchor|GROUND_INFILTRATION_MD_surface|GROUND_INFILTRATION_MD}} |m/day |Surface |The speed at which w...")
 
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{| class="wikitable"
{{terrain attributes|surpresscategory=true|<onlyinclude>
! Attribute
{{:ground infiltration md (Terrain Attribute)}}</onlyinclude>
! Unit
}}
! Terrain type
! Description
|-
|{{anchor|GROUND_INFILTRATION_MD_surface|GROUND_INFILTRATION_MD}}
|m/day
|Surface
|The speed at which water can flow vertically from the surface to the underground unsaturated zone.
|-
|{{anchor|GROUND_INFILTRATION_MD_underground|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.
|-
|{{anchor|WATER_STORAGE_PERCENTAGE|WATER_STORAGE_PERCENTAGE}}
|fraction
|Underground
|The percentage of the underground volume which can be filled with water. A lower percentage means the underground will be able to store less water, and the saturated zone will rise higher with the same amount of water in the underground layer.
|}


====Infiltration and storage====
Based on the properties of the terrain, water may infiltrate into the [[Ground model (Water Overlay)|ground water system]].
Based on the properties of the terrain, water may infiltrate into the {{inlink|Underground model|underground water system}}.


The speed at which water can infiltrate from the surface to the underground unsaturated zone is dependent on both the infiltration properties of the surface terrain, as well as any construction in that location, if present. Of the infiltration values of the construction and the surface terrain, the lowest value is used. If either has an infiltration value of 0, water cannot infiltrate into the underground unsaturated zone.
The speed at which water can infiltrate from the surface to the unsaturated zone is dependent on both the GROUND_INFILTRATION_MD of the surface terrain, as well as the [[ground infiltration md (Water Overlay)|GROUND_INFILTRATION_MD]] of any [[building]] in that location, if present. Of the infiltration values of the building and the surface terrain, the lowest value is used. If either has an infiltration value of 0, water cannot infiltrate into the unsaturated zone.


Underground flow, or horizontal infiltration, are dependent on the infiltration properties of the underground, unless an {{inlink|lcase=1|Aquifer}} exists the same location.  
The maximum amount of water which can be stored in the saturated zone is based on the [[terrain water storage percentage (Water Overlay)|WATER_STORAGE_PERCENTAGE]] of the ground terrain.  


===Notes===
Ground flow, or horizontal infiltration, are dependent on the infiltration properties of the ground, unless an [[Aquifer (Water Overlay)|aquifer]] exists at the same location.
*The groundwater level reduction is inversely proportional to the {{inlink|WATER_STORAGE_PERCENTAGE}}, as the contribution of a given volume of water to the groundwater level increases when the capacity for water storage in the underground layer decreases.
 
{{article end
|notes=
*The groundwater level reduction is inversely proportional to the [[terrain water storage percentage (Water Overlay)|WATER_STORAGE_PERCENTAGE]], as the contribution of a given volume of water to the groundwater level increases when the capacity for water storage in the ground layer decreases.
|howtos=
* [[How to add and remove an Attribute]]
|seealso=
* [[Ground infiltration md (Water Overlay)]]
* [[Groundwater level formula (Water Overlay)]]
* [[Infiltration model (Water Overlay)]]
* [[Surface infiltration formula (Water Overlay)]]
* [[Ground infiltration formula (Water Overlay)]]
* [[Ground model (Water Overlay)]]
}}
{{WaterOverlay terrain attribute nav}}

Latest revision as of 15:33, 27 February 2024

Icon Attribute Unit Layer Range Description
Waterwizard icon water infiltration.png GROUND_INFILTRATION_MD m/day Surface 0 to 10 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 0 to 10 The speed at which water can flow vertically from the surface to the unsaturated zone.

Based on the properties of the terrain, water may infiltrate into the ground water system.

The speed at which water can infiltrate from the surface to the unsaturated zone is dependent on both the GROUND_INFILTRATION_MD of the surface terrain, as well as the GROUND_INFILTRATION_MD of any building in that location, if present. Of the infiltration values of the building and the surface terrain, the lowest value is used. If either has an infiltration value of 0, water cannot infiltrate into the unsaturated zone.

The maximum amount of water which can be stored in the saturated zone is based on the WATER_STORAGE_PERCENTAGE of the ground terrain.

Ground flow, or horizontal infiltration, are dependent on the infiltration properties of the ground, unless an aquifer exists at the same location.

Notes

  • The groundwater level reduction is inversely proportional to the WATER_STORAGE_PERCENTAGE, as the contribution of a given volume of water to the groundwater level increases when the capacity for water storage in the ground layer decreases.

How-to's

See also

Water Module
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Water Module
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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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