The following sediment transport equations are available and all include a calibration factor which has the default value of unity to give the published form of the equations.
No. | Equation | Applicability |
1 | uniform sand - total load | |
2 | uniform sand and gravel - total load | |
3 | Revised Ackers-White (1993) | uniform sand and gravel - total load |
4 | fine sediment - total load | |
7 | uniform/graded coarse sand and gravel - bedload | |
10 | uniform/graded coarse sand and gravel - bedload |
The data file allows the user to input a global sediment size distribution for the bed material, which consists of a table of size against proportion present of that size for between 1 and 10 sizes. The sediment transport is calculated for each size and the resulting total transport rate is calculated by multiplying the proportion of the size in the bed material by the calculated rate. The reported transport rate is the summation of the individual rates. Further details on graded sediments are given below.