Terrain water manning (Water Overlay): Difference between revisions

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====Manning's ''n'' (terrain)====
====Manning's ''n'' (terrain)====
A [[Terrain]] has 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'').
[[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'').


====Notes====
====Notes====

Revision as of 12:34, 20 June 2019

Template:Overlay attribute

Manning's n (terrain)

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 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.
Alt text
The default value for the WATER_MANNING attribute of surface type "Open land". The user can change this value.

See also

References

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