Underwater Acoustics

Marine fauna – the key environmental factor for marine development

The rapid increase in offshore and coastal marine activities leads to increase in underwater noise emissions. Underwater noise from marine activities have potential adverse impact on marine wildlife – from behavioral reactions to physical injuries, as well as long-term ecological implications. It is critical to understand, robustly assess, and mitigate and manage these effects to sustain marine biodiversity.

ANV Consultants provide the following underwater noise related consulting services:

Underwater Acoustics Modelling

  • Offshore marine seismic airgun array sound emission numerical modelling
  • Marine piling and other major source noise emission numerical simulation
  • Underwater acoustic propagation modelling based on various fit-for-purpose modelling algorithms
  • Cumulative sound exposure modelling and impact zones identification for various marine fauna species
  • Mitigation and control measure performance modelling evaluation

Passive Acoustic Monitoring and Measurement

  • Monitoring program design and instrumentation specification
  • Long-term passive acoustic monitoring and short-term attended measurement
  • Sound source verification and noise model validation
  • Baseline marine noise monitoring, statistical analysis and sound source characterisation
  • Acoustic data processing, analysis and marine soundscape interpretation
  • Marine mammal species passive acoustic monitoring and vocalization automatic detection

Impact assessment and mitigation management

  • Underwater noise and vibration impact assessment
  • Mitigation and control design and implementation
  • Underwater noise management plan