SYMBOLS AND DEFINITIONS 



i consecutive number of a given survey in month or year 



N total number of surveys in month or year 



p profile line (No.) 



t date of survey 



t month of interest 



m 



t date of reference survey being used to measure change 



t year of interest 



x^ landward bound 



X2 MSL intercept 



y elevation above MSL 



As unit length of beach front 



10 



