Terrain water storage percentage (Water Overlay): Difference between revisions

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{{Overlay attribute
{{terrain attributes|suppresscategory=true|<onlyinclude>
|attribute=WATER_STORAGE_PERCENTAGE
{{:water storage percentage (Terrain Attribute)}}</onlyinclude>
|unit=fraction
|terraintype=Underground
|description=The percentage (as a fraction) 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 [[Underground model (Water Overlay)|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.
Based on the properties of the [[terrain]], water may infiltrate into the [[Ground model (Water Overlay)|ground layers]]. Two ground layers are distinguished; the unsaturated zone and saturated zone.


Underground flow, or horizontal infiltration, are dependent on the infiltration properties of the underground, unless an [[Aquifer (Water Overlay)|aquifer]] exists the same location.  
The speed at which water can infiltrate from the surface to the unsaturated zone is dependent on both the [[Terrain ground infiltration md (Water Overlay)|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.


==How-to's==
The maximum amount of water which can be stored in the saturated zone is based on the WATER_STORAGE_PERCENTAGE of the ground terrain.
* [[How-to add and remove an attribute|Add and remove an attribute]]


===Notes===
[[Ground model (Water Overlay)#Horizontal flow and aquifers|Ground flow]], also known as horizontal infiltration, is also dependent on the infiltration properties of the ground layer, unless an [[Aquifer (Water Overlay)|aquifer]] exists the same location.
*The groundwater level reduction is related inversely 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 underground layer decreases.
 
{{article end
|notes=
* Contrary to its name, the [[Terrain water storage percentage (Water Overlay)|WATER_STORAGE_PERCENTAGE]] should always be a '''fraction'''.
* The groundwater level reduction is related inversely 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.
|howtos=
* [[How to add and remove an Attribute]]
|seealso=
* [[Groundwater level formula (Water Overlay)]]
* [[Ground infiltration formula (Water Overlay)]]
* [[Ground model (Water Overlay)]]
* [[Evaporation model (Water Overlay)]]
* [[Infiltration model (Water Overlay)]]
}}
{{WaterOverlay terrain attribute nav}}
{{WaterOverlay terrain attribute nav}}

Latest revision as of 17:15, 27 February 2024

Icon Attribute Unit Layer Range Description
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.

Based on the properties of the terrain, water may infiltrate into the ground layers. Two ground layers are distinguished; the unsaturated zone and saturated 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 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, also known as horizontal infiltration, is also dependent on the infiltration properties of the ground layer, unless an aquifer exists the same location.

Notes

  • Contrary to its name, the WATER_STORAGE_PERCENTAGE should always be a fraction.
  • The groundwater level reduction is related inversely 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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Tutorials
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Overview
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Theory
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Benchmarks
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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