Factors affecting accuracy of slope-area discharge determination of the September 1992 flood in Raven Fork, Western North Carolina
By: W. Harold Eddins and Thomas J. Zembrzuski Jr.
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Abstract
For the flood of September 10, 1992, in Raven Fork, Swain County, North Carolina, a peak discharge of 460 cubic meters per second was computed by using the slope-area method. Accuracy of this determination depends on suitability of the selected reach and, in particular, selection of Manning's roughness coefficients, interpretation of the high-water marks, number and placement of cross sections, presence of large expansions or contractions, state-of-flow transitions, and magnitude of the change in water-surface elevation. Some of these factors can contribute to greater uncertainties for measurements in steep mountain streams than for measurements in streams with flatter gradients.
Suggested Citation
Eddins, W.H., Zembrzuski, T.J., 1994, Factors affecting accuracy of slope-area discharge determination of the September 1992 flood in Raven Fork, Western North Carolina, in Proceedings - National Conference on Hydraulic Engineering, no. pt 1, Buffalo, NY, USA, 1 August 1994 through 5 August 1994, p. 645-649.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Factors affecting accuracy of slope-area discharge determination of the September 1992 flood in Raven Fork, Western North Carolina |
| ISBN | 0784400377 |
| Issue | pt 1 |
| Year Published | 1994 |
| Language | English |
| Publisher | Publ by ASCE |
| Publisher location | New York, NY, United States |
| Contributing office(s) | South Atlantic Water Science Center |
| Larger Work Title | Proceedings - National Conference on Hydraulic Engineering |
| First page | 645 |
| Last page | 649 |
| Conference Title | Proceedings of the 1994 ASCE National Conference on Hydraulic Engineering |
| Conference Location | Buffalo, NY, USA |
| Conference Date | 1 August 1994 through 5 August 1994 |
| Country | United States |
| State | North Carolina |
| County | Swain County |
| City | Raven Fork |