2023_programme: Three Dimensions Acoustic Implementation for Event Localization

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  • Session: 03. Comprehensive Nuclear-Test-Ban Treaty Monitoring and its Civil and Scientific Applications
    Organiser(s): Georgios Haralabus, Mario Zampolli and Peter Nielsen
  • Lecture: Three Dimensions Acoustic Implementation for Event Localization [invited]
    Paper ID: 2059
    Author(s): Heaney Kevin, Coelho Emanuel, Oliveira Tiago, Zampolli Mario, Haralabus Georgios
    Presenter: Heaney Kevin
    Abstract: At low frequencies the global oceans can be considered shallow in the sense that the ocean seafloor drives propagation, particularly with respect to refraction and diffraction. In this paper an approach utilizing multiple 3-dimensional acoustic propagation models will be presented to help inform the event localization and association system of the Comprehensive Test Ban Treaty Organization about when 3D acoustics matters and to help improve source localization. Historical examples will be given events (earthquakes and volcanoes) where 3D acoustics drove the event identification. The objective here is to update acoustic coverage maps using 3D propagation, to inform analysts when 3D propagation is likely to be significant and to add a-priori information to the automated association algorithms.
  • Corresponding author: Dr Kevin Heaney
    Affiliation: Applied Ocean Sciences
    Country: United States
    e-mail:

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