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Cetaceans: Radiated Noise IMO Work

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

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  1. Cetaceans: Radiated Noise IMO Work

  2. Radiated Noise • IMO Correspondence Group • Near field vs far field • Noise sources: • flow noise • machinery • cavitation • biggest component ~ 100 Hz

  3. Radiated Noise • Voluntary measures • ship operation • ship construction

  4. Radiated Noise • Efficiency measures • Propeller design & husbandry • low cavitation designs • alternative propulsion – twin screw, azipod • hull & propeller cleaning

  5. 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

  6. Thank you Discussion?

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