If the value of the left side of Equation 41 is less than or equal to the 

 threshold value on the right, then that wave condition in the deepwater time 

 series can be designated as calm. The GENESIS Workbook provides a program for 

 prescanning time series wave data for satisfaction of the threshold longshore 

 transport criterion. Note that Equation 41 is valid for metric units. If 

 American customary units are used, the empirical value of 3.9 m 3 /sec should be 

 changed to 138 ft 3 /sec. These values are expected to be revised as more field 

 data become available. 



96 



