Terrain water manning (Water Overlay): Difference between revisions

From Tygron Preview Support Wiki
Jump to navigation Jump to search
No edit summary
mNo edit summary
Line 7: Line 7:
}}
}}
====Manning's ''n'' (terrain)====
====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'').
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'').


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

Revision as of 12:33, 20 June 2019

Template:Overlay attribute

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).

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