| Abstract: | Suspended sediment and total dissolved material concentrations in stream flow were studied in Deep Creek Representative Basin near Cessnock, N.S.W. between April, 1976 and June, 1977. Sediment and solute transport rates were calculated at two gauging stations for individual flood events and low flow periods using the hourly hydrograph record, stage/season concentration-discharge relationships and calculated rating curves. Limitations in the use of the rating curve suggest that during flood hydrographs of long return period, calculated transport rates may be in error. A continuous record of concentration variation was sampled during one runoff event enabling comparisons to be made between methods of load calculation. For the satisfactory calculation of transport rates during extreme flood hydrographs, it is essential that concentration variation be accurately defined. |
