Terrain water manning (Water Overlay): Difference between revisions
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===Manning | ====Manning's ''n'' (terrain)==== | ||
[[Terrain]]s have an inherent "roughness", | [[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=== | ====Notes==== | ||
* If a construction is present | * The default values for this attribute are derived from online accessible databases<ref name="WikiEngineer"/> and can be 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. | |||
* Only terrains of type '[[Terrain#Surface|surface]]' have an assigned WATER_MANNING. | |||
[[File:Water_manning.png|thumb|left|200px|The default value for the WATER_MANNING attribute of surface type "Open land". The user can change this value.]] | |||
== | ====See also==== | ||
== | |||
* [[Surface flow formula (Water Overlay)|Surface flow formula]] | * [[Surface flow formula (Water Overlay)|Surface flow formula]] | ||
* [[Surface model (Water_Overlay)|Surface model]] | * [[Surface model (Water_Overlay)|Surface model]] | ||
==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}} | {{WaterOverlay terrain attribute nav}} | ||
{{Water Module buttons}} | {{Water Module buttons}} |
Revision as of 12:08, 20 June 2019
Manning's n (terrain)
Terrains 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
- The default values for this attribute are derived from online accessible databases[1] and can be readily adjusted by the user.
- If a construction is present on the terrain, the WATER_MANNING value of the construction is used instead.
- Only terrains of type 'surface' have an assigned WATER_MANNING.
See also
References
- ↑ WikiEngineer (2008-2011). Manning Roughness Coefficients. Retrieved from: http://wikiengineer.com/Water-Resources/ManningRoughnessCoefficients