Author(s): Hyoseop Woo; Kwonkyu Yu
Linked Author(s): Hyoseop Woo
Keywords: Total sediment discharge formulas; Sediment–rating curve; Field data; Comparative study
Abstract: Existing sediment discharge formulas are reassessed by using carefully selected stream sediment data that are found in the literature. In order to clarify the result of this comparative study, only the total sediment discharge formulas and the data collected from the streams are considered, excluding suspended load or bed load formulas and flume data. Direct comparison was made between the measured and calculated sediment discharges for the selected sediment discharge formulas by using the data showing a well-defined, a single relation between water discharge and sediment discharge at each gauging station. The result of this assessment is disappointing with the best accuracy of less than 70%. Among the eight sediment discharge formulas tested in this study, Einstein's and Toffaleti's formulas appear least reliable, while the European formulas appear relatively reliable for determining the sediment discharge in the alluvial channel. This result generally agrees with the previous ones.
Year: 2001