Terrain water manning (Water Overlay): Difference between revisions
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====Notes==== | ====Notes==== | ||
* The default values for this attribute are derived from online accessible databases<ref name="WikiEngineer"/> and | * 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 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. | * Only terrains of type '[[Terrain#Surface|surface]]' have an assigned WATER_MANNING. |
Revision as of 12:09, 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 are 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