CD 



o 



_J 



z 

 o 



I— 



< 

 < 



o 



a. 



3100 3110 3120 3130 3140 



RANGE (yd) 



3150 



3160 



3170 



Figure 6. Comparison of 2-kHz Propagation Losses for a 0. 8-kyd Receiver 



Depth Computed According to Classical and Modified Ray Theories 



(After Pedersen and Gordon, reference 5. ) 



103 



