HAMILTON: TIME VARIATIONS OF SOUND SPEED OVER LONG PATHS IN THE OCEAN 



"TIM 



1490 



16 16 N 



5 9° 4 l' W 



2 May /964 



1500 



Velocity of Sound 



(I 0/ V. = / m/s } 



Figure 10. SERIES OF SOUND-SPEED PROFILES 



ILLUSTRATING WATER-MASS VARIABILITY 



22 



