Tidal modulation of very-low-frequency and ultra-low-frequency ambient noise levels
Abstract
Several years of continuous low-frequency underwater ambient noise data from 0.1 to 125 Hz have been made available for examination by the United Nations Comprehensive Nuclear Test Ban Treaty Organization. Narrow-band noise time records between 0.5 and 10 Hz were selected for study, chosen deliberately to address noise sources tied primarily to the environment. Power spectra of the variable narrow-band time records were found to display sharp spectral lines at fluctuation frequencies that match lunar and solar diurnal and semidiurnal ocean tides.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 01, 2023
- Source ID
- 10.1121/10.0022269
Entities
People
- Anthony I. Eller
- David L. Bradley
- Kevin D. Heaney
Organizations
- Office of Naval Research
- United States Department of Defense