2025_programme: Shipping lane underwater noise simulations for DEMASK

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  • Day: June 17, Tuesday
      Location / Time: C. THALIA at 12:20-12:40
  • Last minutes changes: -
  • Session: 22. Underwater noise in the EU Marine Strategy Framework Directive: implementation, monitoring, assessment and measures
    Organiser(s): Peter Sigray, Aristides Prospathopoulos, Emmanuel Skarsoulis
    Chairperson(s): Aristides Prospathopoulos, Emmanuel Skarsoulis
  • Lecture: Shipping lane underwater noise simulations for DEMASK
    Paper ID: 2216
    Author(s): Timo Constantin Gaida, Christ de Jong, Bas Binnerts
    Presenter: Timo Constantin Gaida
    Abstract: The EU Interreg North Sea Region project DEMASK (Development and Evaluation of noise MAnagement Strategies to Keep the North Sea healthy) aims to help maritime policymakers and other stakeholders evaluate future scenarios and set priorities for a well-managed soundscape. A synthetic shipping lane scenario is developed to study the effects of various noise mitigation strategies to reduce the underwater sound due to the ship traffic. The scenario is designed using recorded AIS (automatic identification system) data for ships passing through a shipping lane north of the Dutch Wadden Islands in 2020. Assuming that all ships sail at constant speed along a straight shipping lane in a uniform environment, the monthly statistics of the sound pressure level (SPL) are calculated as a function of the distance to the shipping lane. The calculations are performed using the Jomopans-ECHO ship source level model and a RAM parabolic equation sound propagation model. Results are presented for a baseline case (2020) and for scenarios including various noise mitigation measures such as the application of a maximum speed limit and a maximum radiated noise level. The results quantify the contribution of various ship types to underwater sound as well as the effectiveness of the studied noise mitigation measures in the monthly SPLs (arithmetic mean) as well as in temporal SPL percentiles.
  • Corresponding author: Dr Christ A. F. de Jong
    Affiliation: TNO
    Country: Netherlands

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