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Cetaceans: Radiated Noise IMO Work. Radiated Noise. IMO Correspondence Group Near field vs far field Noise sources: flow noise machinery cavitation biggest component ~ 100 Hz. Radiated Noise. Voluntary measures ship operation ship construction. Radiated Noise.
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Cetaceans: Radiated Noise IMO Work
Radiated Noise • IMO Correspondence Group • Near field vs far field • Noise sources: • flow noise • machinery • cavitation • biggest component ~ 100 Hz
Radiated Noise • Voluntary measures • ship operation • ship construction
Radiated Noise • Efficiency measures • Propeller design & husbandry • low cavitation designs • alternative propulsion – twin screw, azipod • hull & propeller cleaning
Radiated Noise • Future? • Voluntary measures – mandatory elements • More efficient ships = quieter ships • More information on impact of background noise on cetacean behaviour • Assess different ship types for impact • Location of shipping routes
Thank you Discussion?