FIGURE 5-14. SOUND TRANSMISSION MODES 



(NAVAL OCEANOGRAPHIC OFFICE, 1966). 



VELOCITY 



RANGE 



'-gpc::?cx3c=««3c«=«:« 



SOURCE 



SHADOW ZONE 



SURFACE DUCT 



VELOCITY 



RANGE- 



® DEEP SOUND CHANNEL 



VELOCITY 



RANGE 



© CONVERGENCE ZONE 



VELOCITY 



RANGE' 



D) BOTTOM BOUNCE 



59 



