| Abstract: | Although much research has been done on Manning ‘s roughness coefficients for stream channels, very little has been done on the selection of roughness values for densely vegetated flood plains. In this report four method for determining roughness coefficients for flood plains are examined and evaluated. Field data were collected at 13 sites on wide, densely vegetated flood plains where verified n values were known. The ‘ vegetation density ‘ of representative sample areas was measured at each site for use in determining roughness coefficients. The vegetation density method, proved to be useful in determining n values for wide, densely wooded plains. By measuring the area occupied by tree trunks and vegetation in a representative sample area, the vegetation density can be determined. Using the vegetation density in an equation developed from Manning ‘s formula, the Manning ‘s n can be determined for the representative sample area. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 25958 |
| Citation Author: | Arcement, G. J.; Schneider, V. R. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | - |
| Citation Editor: | |
| Citation End Page: | |
| Citation Issue: | |
| Citation Keywords: | |
| Citation Language: | ENGLISH |
| Citation Larger Work Title: | |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | viii, 62 p. :ill. ;28 cm. |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 83-4247 |
| Citation Search Results Text: | Roughness coefficients for densely vegetated flood plains; 1987; WRI; 83-4247; Arcement, G. J.; Schneider, V. R. |
| Citation Start Page: | |
| Citation Volume: | |
| Citation Year: | 1987 |
| Type: | citation/reference |
| Text: | Roughness coefficients for densely vegetated flood plains; 1987; WRI; 83-4247; Arcement, G. J.; Schneider, V. R. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1983/4247/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1983/4247/report.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
