£ o 



^°-5 



CO 



< 



CO 



o 

 en 



0.4 



0.3 



0.2 



0.1 



i r 



n 1 r~ 



-DATA TAKEN IN 

 SAN DIEGO HARBOR (Ship Noise) 



-2-10 12 



AMPLITUDE IN STANDARD DEVIATION UNITS 



Figure 4. Examples of some PD curves taken 

 both shallow and deep water, compared with a 

 no rmal curve. 



13 



