Consider the two-dimensional beach profile in Figure 7.35, which is initially inequilibrium. The breaking depth is hb. (a) In Case A, sand of the same size as the original is added at a constant rate...

Consider the two-dimensional beach profile in Figure 7.35, which is initially inequilibrium. The breaking depth is hb.

(a) In Case A, sand of the same size as the original is added at a constant rate at the mean water line over the time interval 0 <><>

(b) In Case B, sand is removed at a constant rate from the mean waterline over the time interval, 0 <><>

Figure 7.35