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's ''n'' (terrain)====
[[Terrain]]s have an inherent "roughness", affecting the flow of water across its surface, which is expressed by the Gauckler–Manning coefficient or, in short, Manning's value (''n'').


====Notes====
[[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'').
 
{{article end
|notes=
* 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.
* 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 construction is present on the terrain, the [[Water manning (Water Overlay)|WATER_MANNING]] value of the construction is used instead.
* 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.
* Only terrains of type '[[Terrain#Surface|surface]]' have an assigned WATER_MANNING.
[[File:Water_manning.png|frame|none|alt=Alt text|The default value for the WATER_MANNING attribute of surface type "Open land". The user can change this value.]]
|seealso=
 
* [[Surface flow formula (Water Overlay)]]
====See also====
* [[Surface model (Water Overlay)]]
* [[Surface flow formula (Water Overlay)|Surface flow formula]]
* [[Water manning (Water Overlay)]]
* [[Surface model (Water_Overlay)|Surface model]]
* [[Manning prequel (Water Overlay)]]
 
|references=
==References==
<references>
<references>
<ref name="WikiEngineer">WikiEngineer (2008-2011). Manning Roughness Coefficients. Retrieved from: http://wikiengineer.com/Water-Resources/ManningRoughnessCoefficients </ref>
<ref name="WikiEngineer">WikiEngineer (2008-2011). Manning Roughness Coefficients. Retrieved from: http://wikiengineer.com/Water-Resources/ManningRoughnessCoefficients </ref>
</references>
</references>
}}
{{WaterOverlay terrain attribute nav}}
{{WaterOverlay terrain attribute nav}}
{{Water Module buttons}}

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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