52,000 r 



48,000 



44,000 



40,000 



36,000 



-32,000 



E 



28,000 



24,000 



20,000 



16,000 



12,000 



10 20 30 



40 50 60 70 80 90 100 

 Time (d) 



Figure 18. Volume change for 30-meter-wide shore-parallel subzones of the beach 

 (A, B) , inshore (C, D, E) , and offshore (F, G, H, I) areas of the 

 disposal sector. In the offshore zone, subzones F to I are in se- 

 quential seaward locations. Refer to Figure 6 for location of the 

 subzones. The data points represent the total volume within a par- 

 ticular subzone on successive survey dates. 



32 



