Can oceanic flows be heard? Abyssal melodies
Name
10.0014603.pdf
Size
2.53 MB
Format
Adobe PDF
Checksum (MD5)
1b586ff6722e7488f35eca6a26cdb0f5
Author(s)
Wunsch, Carl
Date Issued
October 2022
Publisher
Acoustical Society of America (ASA)
Citation
Wunsch, Carl. 2022. "Can oceanic flows be heard? Abyssal melodies." 152 (4).
Version
Final published version
Abstract
Fluid flows generate an acoustic noise field. In principle, oceanic flows on varying time and length scales produce a sound field and its detectability is considered here. A fragile lower bound analysis is made of the acoustic signature, using the Lighthill theory, of a simple train of boundary vortices generated by baroclinic tidal flows. Subject to numerous assumptions, the accompanying sound should be detectable within the hum band of seismo-acoustic pressure fields, and more generally, across the entire oceanic spectrum—likely through wave number analyses of spatially coherent acoustic array data.
Subjects
Acoustics and Ultrasonics
Arts and Humanities (miscellaneous)
MIT Department
Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1121/10.0014603
