and Lj. = 16,780 meters (10.4 miles) for the first edge wave 



k = f-il— f _ 1 = 3.74 x 10 -4 



V \l,893/ 9.807(3) 0.001 



and Ly = 16,780 meters for the second edge wave. Note that the two 

 edge waves of a pair have the same length as indicated by the single 

 value for the dimensionless wave number, ky, in Table 3. 



For the third edge wave pair, N 1 = for w and N 2 = 2 for oj 



V = (-H— f l - = 2.66 x lO" 4 



y \3,880/ 9.807(1) 0.001 



and Ly = 23,500 meters (14.6 miles) for the first edge wave 

 k y = \T77§7/ 9.807(5) 0.001 = 2 - 66 x 10 



and L,, = 23,500 meters for the second edge wave. 



(b) The incident wave amplitude needed to generate the first edge 

 wave pair is given by equation (219) as 



/Kv\ 1/2 

 a c = {-) 



where K is given in Table 3 and v = 1.5 x io" 2 stokes (square centi- 

 meters per second) (1.6 x 10" 5 square feet per second) = 1.5 x io -6 

 square meters per second, and w = 2ir/ 1,200 



' 13 x 1.5 x 10 6 \ = q Q6i ^^^ q ^^ 



2tt 



\ 1,200 ; 

 For the second edge wave pair 



51 x 1 ' 5 x 10 " 6 \ =0.12 meter (0.39 foot) 

 2tt 



\ 1,200 / 



For the third edge wave pair 



a c = /100 x 1.5 x 1Q-6\ 1/2 = oiy meter (o>56 foQt) 



\ 1,200 / 



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106 



