SYMBOLS AND DEFINITIONS 



d water depth 



d water depth at toe of structure 



g acceleration of gravity (32.2 feet per second squared or 9.81 

 meters per second squared) 



H wave height 



H' the deepwater wave" height equivalent to the observed shallow- 

 water wave height assuming no refraction and friction 



K shoaling coefficient, H/H' 



k a length dimension of armor units 



L wavelength in a water depth, d 



L deepwater wavelength; wavelength in water depth, d, such 

 ° that d/L > 0.5 



R runup; the vertical rise of water on a structure face resulting 

 from wave action 



r ration of rough-slope runup to smooth-slope runup; rough-slope 

 runup correction factor 



T wave period ^ 



g bottom slope; used for the slope fronting a structure and is 

 different from the structure slope 



6 structure slope; may be beach slope if runup on the beach face 

 is being investigated 



