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Estimation of roughness coefficients for natural stream channels with vegetated banks

Water Supply Paper 2441

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Abstract

Roughness coefficients for 21 stream sites in New York state are presented. The site-specific relation between roughness coefficent and flow depth varies in a predictable manner, depending on energy gradient, relative smoothness (Rd50), and channel-vegetation density. The percentage of wetted perimeter that is vegetated is a useful indicator of when streambank vegetation can affect the roughness coefficient. To estimate the magnitude of this effect requires evaluation of the density and percent of submergence of vegetation.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Estimation of roughness coefficients for natural stream channels with vegetated banks
Series title:
Water Supply Paper
Series number:
2441
ISBN:
060788701X
Edition:
-
Year Published:
1998
Language:
ENGLISH
Publisher:
U.S. Geological Survey ; Information Services [distributor],
Description:
x, 133 p. :ill. (some col.), map ;28 cm.