Analysis and Ranking of the Acoustic Disturbance Potential of ...

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- Report No. 6945 -* BBN Systems and Technology Corporation g Judy Ann. 02 Sept 1986 20 Hz 1/3 octave band A. 20 Hz 1/3 Octave Band . g Judy Ann. 02 Sept 1986 50 Hz 1/3 octave band 4 B. 50 Hz 1/3 Octave Band Figure B.3. Time Series of the Icebreaking Sound Levels in Four Third-Octave Bands. The Center Frequencies are: (A) 20 Hz, (B) 50 Hz, (C) 500 Hz, and (D) 3150 Hz. The Travel Direction of the Icebreaker (Forward or Reverse) is Depicted at the Bottom of Each Graph. 'Sn Indicates When the Ship was Stopped by the Ice.
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BBN Svstems and Technologies Cor~or
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Report No. 6945 BBN Systems and Tec
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H BOWERS BAW I ALEUTIAN ARC 3 STGEC
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A BEAUFORT SEA B U WCH SEA CHOPEaAS
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Report No. 6945 L 1 A. Baird's Beak
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A BEAUFCRT SEA B CHW(CH SEA CHOPEBA
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A BEAUFCRT SEA BWKQIYA DrnTONBAsw E
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A BEAUFORT SEA BCHlKCHSEA CHaeEansr
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on the ice. The single calves remai
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A 0EAUFaAT SEA BCHJKCH 9 A CHaPE BA
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BCmrcCHSEA CHOPEBnsw 0 NORTON 0Am E
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.. A BEWORT SEA B WKCH SEA CH)PEBAS
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l fjG 1 ll.1 16:' 1 GI) 158 15.1 1
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Table 2.8. Characteristics of Under
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FIG. 3.2 NOISE SPECTRA IN SHALLOW W
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Adapted From K.H. Jacob (1986) Cali
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FIG. 3.8 ESTIMATED OVERALL SOUND LE
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FIG. 3. Q UNDERWATER NOISE SPECTRA
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FIG- 3.1 1 STATISTICAL ANALYSIS OF
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FIG- 3-12 STATISTICAL ANALYSIS OF C
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-- Alr Gun Array + Vlbrosels -* Ice
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FIG. 3.14 REPRESENTATIVE SHIPS AND
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BBN Systems and Technologies Corpor
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~ -- -- FIG. 3.1 7 REPRESENTATIVE R
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FIG. 3-18 REPRESENTATIVE CULTURAL S
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FIG. 4.1 CORRECTION TO 300 M REFERE
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A. 6. ~la~onca 011shwe. mm I C. MSI
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FIG. 4.1 1 AIR TO SHALLOW WATER SOU
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