12 3 



a. Narrow Harbor 



10 



B/L„= 2.0 



x Point of predicted 

 amplification 



b/B 

 0.01 



0.1 



- — 1.0 



I 2 

 b. Wide Harbor 



5 



10 



Figure 44. Theoretical frequency response curves of harbors 

 (from Ippen and Goda, 1963). 



139 



