Abstract
broadband air-gun data from SWARM’95 experiment in shallow water area of Atlantic shelf are used to analyze mode filtering using Warping Transform (WT). Sound intensity fluctuations in the presence of moving nonlinear internal waves are considered on the base of WT. Results are compared with mode filtering using vertical line array (VLA). It is shown that Warping Transform allows us to carry out mode filtering in shallow water environment, changing in time and space in the presence of moving nonlinear internal waves by single hydrophone only. Temporal variations of mode composition in given case have properties specific for manifestation of horizontal refraction in the form of focusing/defocusing in horizontal plane [This work was supported by Israel Science Foundation, grant 565/15].
| Original language | English |
|---|---|
| Pages (from-to) | 1061-1065 |
| Number of pages | 5 |
| Journal | Underwater Acoustic Conference and Exhibition Series |
| State | Published - 2019 |
| Event | 5th Underwater Acoustics Conference and Exhibition, UACE 2019 - Hersonissos, Greece Duration: 30 Jun 2019 → 5 Jul 2019 |
Bibliographical note
Publisher Copyright:© 2019, I.A.C.M, Foundation for Research and Technology - Hellas. All rights reserved.
Keywords
- horizontal refraction
- shallow water sound propagation
- warping transform
ASJC Scopus subject areas
- Geophysics
- Oceanography
- Environmental Engineering
- Acoustics and Ultrasonics