and the corrected variance coefficient is 
uncorrected variance coefficient 
(0.9438) 
11. In general, the wave statistics errors are near 5 percent for wave 
periods less than 12 sec (12 sec is equal to the annual mean plus 1 standard 
deviation wave period). Errors of this magnitude are generally tolerable for 
most engineering applications, although it is worthwhile to know the error 
bounds for some design considerations. When investigating coastal phenomena 
involving very long period swell of 15 sec or greater, such as surf beats and 
sediment accretion due to swell waves, these corrections will produce signifi- 
cant increases in the magnitudes of the wave parameters, and it is recommended 
that the corrections be used. 
AQ 
