APPENDIX A: NOTATION 



2 

 A T Cross-sectional area of breakwater (ft ) 



d g Water depth at toe of breakwater (ft) 

 1/3 

 ^50 ^ W 50^ W r^ ' t yP ical dimension of the median stone (ft) 



h^ Crest height of reef breakwater 



Zero-moment transmitted wave height (ft) 

 H Incident zero-moment wave height 



H 



t 



W 

 50 



mo 



L Airy wave length calculated using T and d (ft) 

 P p s 



T Wave period of peak energy density of spectrum (sec) 



3 

 w Unit weight of stone (lb/ft ) 



Median stone weight, subscript indicates percent of total weight of gra- 

 dation contributed by stones of lesser weight (lb) 



F ^c " d 3^ ' f ree ^ oard of structure which for reef can be either positive 

 or negative (ft) 



B nc *«;n » widtn °f reef crest (ft) 



n Crest width factor 



T Zero-crossing wave period (sec) 



H Significant wave height, average of the highest one-third of the waves 

 (ft) 



F' Dimensionless freeboard, defined by Equation 1 



2 

 g Acceleration of gravity, 32.16 ft/sec 



Q Overtopping rate (cfs/ft) 



Q Overtopping coefficient (cfs/ft) 



C Dimensionless overtopping coefficient 



A Hydraulic rank parameter for seawall/revetment configurations (cfs/ft) 



Al 



