RODERICK: FORWARD SCATTERED LOW-FREQUENCY SOUND FROM THE SEA SURFACE 



CO 



> 

 UJ 



3 

 oc 



t- 



KJ 

 UJ 



a. 

 tn 



O 



UJ 



M 



Zj 

 < 



O 



z 



200 100 100 200 



RELATIVE FREQUENCY IN MHz 



-40 



Figure 2. 



800 400 400 800 



RELATIVE FREQUENCY IN MHz 



DOPPLER SPECTRUM AT TVJO FREQUENCIES 

 (from Ellinthorpe, 1966) 



329 



