Wash Load and Bed-Material Load Transport in the Yellow River |
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| Authors: | Chih Ted Yang Francisco J. M. Sim?es |
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| Affiliation: | 1Borland Professor of Water Resources, Dept. of Civil Engineering, Colorado State Univ., Fort Collins, CO 80523. E-mail: ctyang@engr.colostate.edu
2Research Hydrologist, U.S. Geological Survey, P.O. Box 25046, Mail Stop 413, Lakewood, CO 80225. E-mail: frsimoes@usgs.gov
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| Abstract: | It has been the conventional assumption that wash load is supply limited and is only indirectly related to the hydraulics of a river. Hydraulic engineers also assumed that bed-material load concentration is independent of wash load concentration. This paper provides a detailed analysis of the Yellow River sediment transport data to determine whether the above assumptions are true and whether wash load concentration can be computed from the original unit stream power formula and the modified unit stream power formula for sediment-laden flows. A systematic and thorough analysis of 1,160 sets of data collected from 9 gauging stations along the Middle and Lower Yellow River confirmed that the method suggested by the conjunctive use of the two formulas can be used to compute wash load, bed-material load, and total load in the Yellow River with accuracy. |
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| Keywords: | Sediment transport Wash load Transport rate China Rivers Bed material |
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