Later Survey 



Figure 8. Profile coordinate system. 



Survey B 



SUBAERIAL UNIT 



VOLUME 



CHANGE — 



(m 3 /m) 



Cross-Sectional 



Area Change 



Between Surveys AandB 



(m 2 ) 



Unit Distance 

 Parallel to 

 Shore 



(Im/m) 



Figure 9. Definition of MSL shoreline change and subaerial unit 

 volume change. 



17 



