Techniques for estimating sediment yield of ungaged tributaries on the southern Colorado Plateau

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Numerous regional sediment transport data are used to evaluate three techniques for estimating streamflow sediment yield from ungaged tributaries of the Colorado River in Grand Canyon. These techniques include: (1) a regression equation relating drainage area to sediment yield for all relevant sediment-yield data from northern Arizona, (2) an empirical relation developed by Renard (1972) selected from 8 potentially relevant methods, and (3) a new procedure that combines regional flood-frequency analysis with sediment-rating curves. Results based on techniques (1) and (2) are not significantly different. The third technique requires numerous assumptions, most notably that sediment yield on a decadal average can be described by several floods of recurrence intervals of 2 yr, 5 yr, and 10 yr described by regional flood-frequency relations. Using data collected at gaging stations, we develop a relation between peak discharge and total-event sediment yield derived from hydrographs and sediment-rating curves. This third technique produces sediment yield estimates comparable to those of the regional data regression and Renard (1972) relations and may be a more robust technique for estimating sediment yield when streamflow data are available.

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Publication type Conference Paper
Publication Subtype Conference Paper
Title Techniques for estimating sediment yield of ungaged tributaries on the southern Colorado Plateau
Volume 7
Year Published 2001
Language English
Publisher Inter-agency Committee on Water Resources. Subcommittee on Sedimentation
Contributing office(s) Rocky Mountain Regional Office
Description 8 p.
Larger Work Type Book
Larger Work Subtype Conference publication
Larger Work Title Proceedings of the Seventh Federal interagency sedimentation conference
First page I-24
Last page I-31
Conference Title Seventh Federal Interagency Sedimentation Conference
Conference Location Reno, NV
Conference Date Mar 25-29, 2001
Country United States
State Arizona
Other Geospatial Colorado River, Grand Canyon
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