BUCK: ARCTIC ENVIRONMENTAL LP ACOUSTICS MEASUREMENTS, 

 MODELS AND PLANS 







db -5 



-10 



10 



zo 



30 



40 



3 



X 



o 



$ 



50 (hz] 

 — As 



X 



o 



AMB. 

 NOISE 



^ Tj ^68 



• i3 yo 



-10 



-5 







X 



a 



X 



g 



g 



o 



XMSN. LOSS 



• T3 ^oo' 



>^ 13 400' 



5 o T3 GOO' 



° T5 800' 



sourct 



S/N 

 •T5 



qyre 

 ceioter 



+ 5 



0-«- 



X 



X 



■^A. 



COHPARISON, ICE ISLAND AND FLOE ICE 



S/N 



,T_ <?C7<?' 



'J ceniet 

 •* centet 



Figure 22. COMPARISON OF ICE ISLAND AND FLOE ICE [REFERENCE 

 IS THE FLOE STATION (A ) 200-FOOT HYDROPHONE J 



759 



