The Transport Function Calibration and Modification editor allows the user to scale or calibrate different transport formula in various ways. It is opened from the Sediment Data editor by opening the Options menu and selecting Calibrate Transport Function (see figure below).


Figure1. Opening the Transport Function Calibration and Modification editor from the Sediment Data editor.

The preferred method for calibrating the transport function is by means of the scaling factors. The total-load scaling factor is applied the same to all the transport functions. The mobility factor multiplies by the threshold for incipient motion (albeit a critical shear, reference shear, or Shields number). Therefore, a mobility factor larger than 1 reduces the mobility of a sediment. The option is also available to calibrate specific coefficients and exponents of several transport formula.


Figure 2. Transport Function Calibration and Modification editor.