SYMBOLS AND DEFINITIONS 



D average height of affected dunes 



d depth of profile adjustment 



d estimate of d (d = 2.1 h^) 



he significant wave height with a 5-year return period 



k a constant of proportionality between wave height and the depth of 

 profile adjustment 



£n natural logarithm 



Q volume sediment flux into the survey area 



Ra sediment overfill factor — the ratio of sediment volume supplied by 

 profile recession to that retained after sediment sorting, packing, 

 and profile readjustment 



sg (z) signum function having values of: 1 for z > 0; -1 for z < 0; and 

 for z = 



T time 



Th thickness of volume change if spreJid evenly over the survey area 



X average horizontal extent of profile adjustment 



X average horizontal displacement of the profile and shoreline 



Y longshore extent of survey area 



Z average vertical extent of adjusting shore profile 



z average change in elevation of the water surface 



a the effective angle of profile response if Ra = 1 and Q = (eq. 3) 

 (also symbol for "is directly proportional to") 



AX profile digitizing interval 



