Duntroon Multi-client 3D and 2D Marine Seismic Survey: Acoustic Modelling
November 2018 — Southern Australia
Client: PGS Australia
Appendix B – Acoustic Modelling for Assessing Marine Fauna Sound Exposures for a 3260 in³ array
Sound modelling study to assess underwater noise levels during the proposed Duntroon Multi-Client Marine Seismic Survey in the Great Australian Bight, which received environmental approval in January 2019. Four types of acoustic propagation models were used in combination to characterize the sound fields from the proposed 3-D seismic survey at both short and long ranges. The sound propagation was modelled at 16 sites, and the potential impacts on marine fauna were predicted for cetaceans, pinnipeds, turtles, fish, and invertebrates using a variety of sound level metrics and impact criteria.
