channel roughness

channel roughness

[′chan·əl ‚rəf·nəs]
(geology)
A measure of the resistivity offered by the material constituting stream channel margins to the flow of water.
References in periodicals archive ?
Composite overland and channel roughness coefficients are also calculated for the three test micro-watersheds as per the procedures detailed in section of material and methods.
where, nc is channel roughness coefficient, Sci is mean ith order channel slope; Bi is width of ith order channel and hcoi is in-flow depth of ith order channel due to water transported from upstream reaches.