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

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Report No. 6945 BBN Systems and Technology Corporation Table A.5. Recreational and Cultural Source Level Spectra 1/3 Octave Spectra, dB re 1 vPa at 1 m (except as noted). Underwater Under Ice Airborne 13'Uhaler 16'Zodiac 24'0utdrv Helo Snowmach Shotgun Snowmach 1/3 Oct 20 HP 08 20 HP OB 2-80 HP Warmup 16 km/hr 10 ga 40 km/hr* Ref. (1) (2 (3) (4) .(5) (6) (7) ( 1 ) Malme et al. 1982 11 (2 I1 (3) (4) deHeering and White 1984 . (5) Holiday et al. 1980 (6) BBN Archives (7) Cheney and McClain 1973 *(r = 15m)
Report No. 6945 BBN Systems and Technology Corporation Table A.6. BBN Source Level Data* 1/3 Octave Spectra, dB re 1 vPa at 1.m. 1/3 Oct. (Hz) EXPLORER - 11 (1986) Drilling Ls R . LEMEUR Breaking Ice Ls KIGORI AK Transit ( 10 kts) Ls W. POLARIS Seismic ( Peak) Ls ARGILOPOTES Clamshell Dredge Ls TUG/ BARGE (10 kts) Ls 151.5 155.0 158.0 160.0 159.5 161 .O 162.0 167.0 164.0 161.5 160.0 162.5 161 .O 161.5 164.5 161 .O 161.5 159.5 157.5 156.0 152.0 149.5 148.0 145.0 143.5 140.0 137.5 135.5 134.0 132.0 152.0 154.5 164.0 168.0 169.0 173.0 177.0 179.5 178.5 183.0 181.5 179.0 180.0 181.5 178.0 182.0 180.0 178.0 178.5 176.0 178.0 175.0 179.0 178.5 178.5 180.5 178.5 177.0 171 .O 174.0 173.0 172.0 157.0 161.0 . 161.5 159.0 161 .O 160.5 162.0 173.0 172.0 173.5 170.0 169.5 170.0 .166.5 169.0 165.5 166.5 166.0 , 167.0 163.5 163.0 159.5 159.0 156.5 155.0 151.5 149.0 146.5 146.0 143.0 143.0 142.0 1 go. 0 198.0 20'3 .o 199.5 202.5 201 .o 2 10.0 208.5 209.0 209.0 204.0 200.0 199.0 197.0 187.0 184.0 183.5 185.0 188.0 191 .O 188.5 186.5 178.5 176.0 174.0 175.0 168.0 142.7 154.0 150.0 139.5 141.2 139.6 142.8 144.4 148.8 156.8 156.8 157.6 156.8 159.3 160.1 160.5 160.8 161.5 161.2 156.3 157.7 157.5 157.3 156.7 156.2 155.3 154.5 155.0 154.6 153.6 152.6 149.3 *BBN Data EXPLORER 11, drilling at Corona Site, Miles et al. 1987 ROBERT LEMEUR breaking ice at Corona Site, Miles et al. 1987 KIGORIAK transit at 10 kts, Corona Site, Miles et al. 1987 W. POLARIS seismic survey, 18 tun N. of Corona Site, Miles et al. 1987 ARGILOPOTES, clam shell dredge at Erik Site, Miles et al. 1987 Tug (2250 HP) towing a loaded barge at 10 kts, Malme et al. 1982
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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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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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~ -- -- 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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FIG. 4.1 1 AIR TO SHALLOW WATER SOU
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