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Differential bedload transport rates in a gravel‐bed stream: A grain‐size distribution approach
Author(s) -
Diplas Panayiotis
Publication year - 1992
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290170608
Subject(s) - bed load , streams , geology , hydrology (agriculture) , hyperconcentrated flow , grain size , geomorphology , sediment transport , geotechnical engineering , sediment , computer science , computer network
Two methods that were recently proposed for calculating fractional bedload transport rates in gravel‐bed streams are examined closely. Both of them employ the Oak Creek bedload data. The Diplas (PD) method is guided by dimensional analysis and, therefore, can be used to predict bedload transport in different gravel rivers. The only requirement for using this method is the knowledge of the subsurface material size distribution of the stream of interest. The expression for the fractional bedload transport obtained by the Shih and Komar (SK) method for Oak Creek cannot be used for other streams. Its use for a given stream requires information that is rarely available. For the Oak Creek case both methods demonstrate similar predictive ability.