Broadband properties of potential and kinetic energies in an oceanic waveguide

dc.contributor.author Flamant, Julien
dc.contributor.author Bonnel, Julien
dc.date.accessioned 2024-01-09T19:28:16Z
dc.date.available 2024-01-09T19:28:16Z
dc.date.issued 2023-05-23
dc.description © The Author(s), 2023. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Flamant, J., & Bonnel, J. Broadband properties of potential and kinetic energies in an oceanic waveguide. Journal of the Acoustical Society of America, 153(5), (2023): 3012-3024. https://doi.org/10.1121/10.0019545.
dc.description.abstract The energetic properties of an acoustic field can be quantified through the potential (Ep) and kinetic (Ek) energies. This article derives broadband properties of Ep and Ek in an oceanic waveguide, with restriction to a far-field context under which the acoustic field can be described by a set of propagating trapped modes. Using a set of reasonable assumptions, it is analytically demonstrated that, when integrated over a wide enough frequency-band, Ep = Ek everywhere in the waveguide, except at four specific depths: z = 0 (sea surface), z = D (seafloor), z = zs (source depth), and z = D -zs (mirrored source depth). Several realistic simulations are also presented to show the relevance of the analytical derivation. It is notably illustrated that, when integrated over third-octave bands, Ep ≡ Ek within 1 dB everywhere in the far-field waveguide, except in the first few meters of the water column (on a dB scale, no significant difference is found between Ep and Ek for z = D, z = zs, and Z = D - Zs).
dc.description.sponsorship This work was supported by the Office of Naval Research (USA), the Délégation Générale de l'Armement (France), and the Agence Nationale de la Recherche (France).
dc.identifier.citation Flamant, J., & Bonnel, J. (2023). Broadband properties of potential and kinetic energies in an oceanic waveguide. Journal of the Acoustical Society of America, 153(5), 3012-3024.
dc.identifier.doi 10.1121/10.0019545
dc.identifier.uri https://hdl.handle.net/1912/67437
dc.publisher Acoustical Society of America
dc.relation.uri https://doi.org/10.1121/10.0019545
dc.rights Attribution 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ *
dc.title Broadband properties of potential and kinetic energies in an oceanic waveguide
dc.type Article
dspace.entity.type Publication
relation.isAuthorOfPublication 1699ce5d-6d5c-43df-bc22-1003864050b9
relation.isAuthorOfPublication 6ff8b66b-8f94-4f2f-8059-2ce8cd1241ab
relation.isAuthorOfPublication.latestForDiscovery 1699ce5d-6d5c-43df-bc22-1003864050b9
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
3012_1_10.0019545.pdf
Size:
6.19 MB
Format:
Adobe Portable Document Format
Description: