Terrain water manning (Water Overlay): Difference between revisions

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{{Overlay attribute
[[File:Water_manning.png|150px|right|thumb|none|alt=Alt text|The default value for the WATER_MANNING attribute of surface type "Open land". The user can change this value.]]
|attribute=WATER_MANNING
{{terrain attributes|suppresscategory=true|<onlyinclude>
|unit=s/(m<sup>1/3</sup>)
{{:water manning (Terrain Attribute)}}</onlyinclude>
|terraintype=Surface
|description=The Gauckler–Manning coefficient of the terrain.
|icon=[[File:waterwizard_icon_manning.png]]
}}
}}
====Manning value (terrain)====
Terrains have an inherent "roughness", which influences how fast water can flow across the surface. This is known as the Manning coefficient or Manning value.


==How-to's==
[[Terrain]]s have an inherent "roughness", affecting the flow of water across their surface, which is expressed by the Gauckler–Manning coefficient or, in short, Manning's value (''n'').
* [[How-to add and remove an attribute|Add and remove an attribute]]


===Notes===
{{article end
* If a construction is present in the same location, that construction's {{inlink|WATER_MANNING_constructions|WATER_MANNING}} value is used instead.
|notes=
{{Template:WaterOverlay attribute nav}}
* The values for this attribute are clamped between 0.01 and 0.255.
* The [[Manning prequel (Water Overlay)|manning value]] can alternatively be provided as a [[prequel]].
* The default values for this attribute are derived from online accessible databases<ref name="WikiEngineer"/> and are readily [[How to add and remove an Attribute|adjusted]] by the user.
* If a building is present on the terrain, the [[Water manning (Water Overlay)|WATER_MANNING]] value of the building is used instead.
* Only terrains of type '[[Terrain#Surface|surface]]' have an assigned WATER_MANNING.
|seealso=
* [[Surface flow formula (Water Overlay)]]
* [[Surface model (Water Overlay)]]
* [[Water manning (Water Overlay)]]
* [[Manning prequel (Water Overlay)]]
|references=
<references>
<ref name="WikiEngineer">WikiEngineer (2008-2011). Manning Roughness Coefficients. Retrieved from: http://wikiengineer.com/Water-Resources/ManningRoughnessCoefficients </ref>
</references>
}}
{{WaterOverlay terrain attribute nav}}

Latest revision as of 15:31, 27 February 2024

Alt text
The default value for the WATER_MANNING attribute of surface type "Open land". The user can change this value.
Icon Attribute Unit Layer Range Description
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.

Terrains have an inherent "roughness", affecting the flow of water across their surface, which is expressed by the Gauckler–Manning coefficient or, in short, Manning's value (n).

Notes

  • The values for this attribute are clamped between 0.01 and 0.255.
  • The manning value can alternatively be provided as a prequel.
  • The default values for this attribute are derived from online accessible databases[1] and are readily adjusted by the user.
  • If a building is present on the terrain, the WATER_MANNING value of the building is used instead.
  • Only terrains of type 'surface' have an assigned WATER_MANNING.

See also

References

  1. ↑ WikiEngineer (2008-2011). Manning Roughness Coefficients. Retrieved from: http://wikiengineer.com/Water-Resources/ManningRoughnessCoefficients
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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
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