Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
Propagation of Waves01:07

Propagation of Waves

When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
Sound Waves: Interference00:53

Sound Waves: Interference

Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Interference and Superposition of Waves01:07

Interference and Superposition of Waves

When two waves of the same nature occur in the same region simultaneously, they result in interference. Interference of waves implies that the net effect of the waves is the sum of the individual waves' effects. However, it does not imply that the individual waves affect the propagation of other waves.
Interference occurs in mechanical waves, such as sound waves, waves on a string, and surface water waves. Mechanical waves correspond to the physical displacement of particles. Hence,...
Sound as Pressure Waves01:17

Sound as Pressure Waves

Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Rasping in the dark: First evidence of sound production in a polar marine invertebrate, the snow crab (Chionoecetes opilio).

The Journal of the Acoustical Society of America·2026
Same author

A deep learning approach to broadband modal propagation in various shallow water waveguides.

The Journal of the Acoustical Society of America·2026
Same author

Evidence for spatial variability in the geoacoustic parameters of the Atlantis II seamount flanks.

JASA express letters·2026
Same author

Sound properties and shallow water propagation for acoustic enrichment in coral reefs.

The Journal of the Acoustical Society of America·2025
Same author

Particle motion polarization of offshore fish vocalizations versus ambient and ship noise.

The Journal of the Acoustical Society of America·2025
Same author

Observation and modeling of out-of-plane arrivals on near-bottom recorders at the Atlantis II Seamount Complex.

The Journal of the Acoustical Society of America·2025

Related Experiment Video

Updated: May 29, 2026

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

Geoacoustic inversion in a dispersive waveguide using warping operators.

Julien Bonnel1, N Ross Chapman

  • 1Université Européenne de Bretagne, 29806 Brest Cedex 9, France. julien.bonnel@ensta-bretagne.fr

The Journal of the Acoustical Society of America
|September 1, 2011
PubMed
Summary

This study introduces a geoacoustic inversion method for shallow water environments using low-frequency impulsive sources. The technique accurately estimates seafloor sediment properties and source-receiver range.

More Related Videos

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Related Experiment Videos

Last Updated: May 29, 2026

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population
09:02

Cortical Bone Assessment Using Ultrasonic Guided Waves: A Reproducibility Study in a Healthy Population

Published on: January 31, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Area of Science:

  • Oceanography
  • Acoustics
  • Geophysics

Background:

  • Geoacoustic inversion is crucial for understanding seafloor properties.
  • Low-frequency impulsive sources offer unique advantages for acoustic propagation studies.
  • Accurate characterization of shallow water environments is essential for various applications.

Purpose of the Study:

  • To adapt a single-receiver geoacoustic inversion method for low-frequency impulsive sources.
  • To apply the method to real-world data from the Shallow Water 2006 experiment.
  • To reliably estimate shallow marine sediment properties and source-receiver ranges.

Main Methods:

  • Extraction of dispersion curves from received acoustic signals.
  • Utilizing a signal processing technique called warping to enhance modal separability in the time-frequency domain.
  • Comparing extracted dispersion curves with simulated replicas for inversion.

Main Results:

  • Reliable estimation of compressional sound speed and density for New Jersey Shelf sediments.
  • Accurate determination of the source-receiver range.
  • Validation of the adapted geoacoustic inversion technique.

Conclusions:

  • The developed geoacoustic inversion method is effective for low-frequency impulsive sources in shallow water.
  • The technique provides accurate estimates of seafloor properties and range.
  • This method advances acoustic remote sensing of marine sediments.