UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS PAOE(TWi«n Date Entered) 



The historical position of the MLW, MSL, and MHW contours, relative to a 

 fixed base line, is plotted for the period between 1964 and 1975. An equiv- 

 alent volumetric erosion or accretion between successive surveys is deter- 

 mined by multiplying the average excursion distance of the contours by a 

 constant of proportionality. 



The plots of excursion distance versus time for the MLW, MSL, and MHW 

 contours also show the time response of the beach fills. This response is 

 described by a mathematical function. 



The alongshore components of wave-induced energy flux are also deter- 

 mined within the study area through wave refraction analysis. This informa- 

 tion, together with the information on volumetric change, is used in a 

 sediment budget analysis to determine the coefficient of alongshore sediment 

 transport and the inlet trapping characteristics. 



UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS PAGE(H7ien Data Entered) 



