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.
| 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 |
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