48. The correlation lines in Figures 18, 19, and 20 all intercept the 

 positive x-axis (the term "const." in Equation 4). The value of the intercept 

 is partially an artifact of the use of a straight-line regression analysis. 

 However, the intercept may be interpreted as an effective cutoff for transport 

 of significance in engineering applications, since transport rates lying below 

 this value evidently have a much weaker dependence on the quantity H ims V 



than the plotted measured values . 



49. Stepwise correlation analysis indicated that there was no relation 

 between the quantities H ims , dH ims /dx , V , and o v . In a situation where 

 the longshore current is produced by obliquely incident waves, the magnitude 

 of the current speed is proportional to the square root of the wave height. 

 In the present case, V and tf rms were not related because the experiments 

 were performed in or near the feeder current of a rip current. Caution should 

 be taken in general use of the correction term proportional to a , as most 

 TSM measurements were performed on a plateau with a very mild slope. Values 

 of dH^/dx ranged from -0.035 to 0.037 and values of o v /V ranged from 0.07 

 to 2.03. Use of the relationship with the two correction terms requires 

 detailed knowledge of wave height and current characteristics, and may be 

 applicable only if these data are available. 



48 



