Elusive decibel: Thoughts on sonars and marine mammals

Auteurs-es

  • David M.F. Chapman Defence Research Establishment, Atlantic, Dartmouth, Canada
  • Dale D. Ellis Defence Research Establishment, Atlantic, Dartmouth, Canada

Mots-clés :

Environmental protection, Marine biology, Sonar, Terminology, Units of measurement, Acoustical units

Résumé

Sonar engineers, marine biologists and environmentally-conscious citizens continue to discuss the issues of using the same acoustical units to avoid confusion and misinterpretation, which can be traced back to the multiple use of the term `decibel'. But the real focus of concern is to determine what underwater sound levels are harmful to marine life. Hence, mitigation measures must be developed to allow underwater acoustic systems to be operated while ensuring the protection of the marine environment.

Fichiers supplémentaires

Publié-e

1998-06-01

Comment citer

1.
Chapman DM, Ellis DD. Elusive decibel: Thoughts on sonars and marine mammals. Canadian Acoustics [Internet]. 1 juin 1998 [cité 22 févr. 2025];26(2):29-31. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1125

Numéro

Vol. 26 No. 2 (1998)

Rubrique

Articles techniques

Licence

Author Licensing Addendum

This Licensing Addendum ("Addendum") is entered into between the undersigned Author(s) and Canadian Acoustics journal published by the Canadian Acoustical Association (hereinafter referred to as the "Publisher"). The Author(s) and the Publisher agree as follows:

  1. Retained Rights: The Author(s) retain(s) the following rights:

    • The right to reproduce, distribute, and publicly display the Work on the Author's personal website or the website of the Author's institution.
    • The right to use the Work in the Author's teaching activities and presentations.
    • The right to include the Work in a compilation for the Author's personal use, not for sale.

  2. Grant of License: The Author(s) grant(s) to the Publisher a worldwide exclusive license to publish, reproduce, distribute, and display the Work in Canadian Acoustics and any other formats and media deemed appropriate by the Publisher.

  3. Attribution: The Publisher agrees to include proper attribution to the Author(s) in all publications and reproductions of the Work.

  4. No Conflict: This Addendum is intended to be in harmony with, and not in conflict with, the terms and conditions of the original agreement entered into between the Author(s) and the Publisher.

  5. Copyright Clause: Copyright on articles is held by the Author(s). The corresponding Author has the right to grant on behalf of all Authors and does grant on behalf of all Authors, a worldwide exclusive license to the Publisher and its licensees in perpetuity, in all forms, formats, and media (whether known now or created in the future), including but not limited to the rights to publish, reproduce, distribute, display, store, translate, create adaptations, reprints, include within collections, and create summaries, extracts, and/or abstracts of the Contribution.