2025_programme: Mapping the Impact of Climate Change on Indicators of Acoustic Propagation in the Atlantic Ocean

Back


  • Day: June 19, Thursday
      Location / Time: B. ERATO at 11:20-11:40
  • Last minutes changes: -
  • Session: 16. Sonar performance modeling and verification: Active and passive sonar
    Organiser(s): Mathieu Colin, Kevin Heaney
    Chairperson(s): Kevin Heaney, Victor Oppeneer
  • Lecture: Mapping the Impact of Climate Change on Indicators of Acoustic Propagation in the Atlantic Ocean [Invited]
    Paper ID: 2232
    Author(s): Victor Oppeneer, Nolwenn Risser, Aniello Russo, Giacomo Giorli, Robbert van Vossen
    Presenter: Victor Oppeneer
    Abstract: Climate change is causing a significant warming of the seas and oceans, leading to changes in temperature and salinity distributions within the water column. The sound-speed-profile (SSP) depends on these distributions, and its vertical shape affects the acoustic propagation inside the water column. However, making inferences on the impact of climate change on acoustic propagation is not straightforward. In order to increase our understanding of this complex relationship, this paper presents a case study on propagation in the Atlantic Ocean. It considers the effect of climate change on properties such as sonic layer depth, channel axis, and convergence zones. Based on (horizontally) high-resolution climate modelling projections, maps are created that reveal how the sonic layer depth and channel axis might evolve over time up to 2050. By coupling the climate data with ocean acoustic propagation models, similar maps for convergence zone distances can be created. Maps of these properties provide insights into latitudes and longitudes where the effects of climate change on acoustic propagation are the strongest and in which regions a limited effect is expected. Given the seasonal dependency of these properties, maps will be created for select key months to illustrate both the seasonal variations and their change over time.
      Download the full paper
    This paper is a candidate for the "Prof. John Papadakis award for the best paper presented by a young acoustician(under 40)"
  • Corresponding author: Mr Victor Oppeneer
    Affiliation: TNO
    Country: Netherlands

Back