a' Volume of solids/total volume 



b Subscript denoting breaking condition 



C Wave group velocity, m/s 



D Depth of profile closure, m 



p 



g Acceleration resulting from gravity, m/s 



H Wave height, m 



i Subscript denoting position alongshore 



K Dimensionless empirical coefficient in the longshore sediment 

 transport rate formula 



n Superscript denoting time level 



N Total number of calculation cells in the model 



Q Total volumetric longshore sediment transport rate, nrVs 



r Conversion factor from RMS to significant wave height 



R Stability parameter, nr/s 



S Ratio of density of solids to density of water 



t Time, s 



x Position alongshore, m 



y Position on-offshore; shoreline position, m 



yc Extremal, internally calculated shoreline position, used in the 

 implicit numerical solution scheme, m 



ys Position of seawall on-offshore, m 



Y Ratio of wave height to water depth at breaking 



At Time step, s 



Ax Space step alongshore, m 



Ay Space increment on-offshore, m 



8, Angle of breaking waves to the shoreline, deg 



9 Angle of breaking waves to the x-axis, deg 



* Superscript denoting a corrected value 



1 Superscript denoting a quantity at next time step 



B2 



