Download page Sediment Concentration Correction due to Bed Change.
Sediment Concentration Correction due to Bed Change
After the bed elevation is adjusted the sediment concentration should be corrected to preserve local sediment mass balance. This correction is done using the following simple formula
h^{n + 1}= cell hydraulic (average) water depth [L]
{\Delta z_{b}^{W}}= average bed change for wetted portion of a cell [L]
It is noted that the sediment concentration is not resolved at a subgrid level which is why the water depth in the above equation corresponds to the hydraulic water depth.