Related Experiment Video
Updated: May 9, 2026

Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
Integrating the energy flux method for reverberation with physics-based seabed scattering models: modeling and
1School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0405, USA. jixun.zhou@me.gatech.edu
Abstract:
During the past 30 years, one of the major accomplishments in ocean acoustics is the improvement of understanding seabed scattering, resulting from a significant effort of both at-sea measurement and theoretical modeling. [Jackson and Richardson: High-Frequency Seafloor Acoustics, 2007]. Benefiting from this accomplishment, this paper integrates the energy flux method for shallow-water (SW) reverberation [Zhou, (Chinese) Acta Acust. 5, 86-99 (1980)] with the physics-based seabed scattering models. This integration directly and intuitively results in general expressions for SW reverberation in the angular and modal domains. The latter expression is the same as the modal reverberation expression derived from the Green's function and boundary perturbation method by Tracey and Schmidt [IEEE J. Ocean. Eng. 22, 317-331(1997)]. The integration also results in a simple relationship between the classic boundary scattering cross sections and the modal scattering matrix in SW waveguides. The bottom roughness spectrum and sediment volume scattering cross section at low grazing angles are inverted in a frequency range of 150-2500 Hz from the wideband long-range reverberation data by using the Biot seabed geoacoustic model. The results may offer some reference data sets for future analysis of the low-frequency seabed scattering mechanisms.
More Related Videos
13:35Reefshape: A System for the Efficient Collection and Automated Processing of Time-Series Underwater Photogrammetry Data for Benthic Habitat Monitoring
Published on: June 13, 2025
09:22Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus (SCUVA)
Published on: October 31, 2011
Related Concept Videos
Magnetostatic Boundary Conditions
Typical Model Studies
Echo
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case, then the...
Poisson's And Laplace's Equation
Electrostatic Boundary Conditions
The surface integral of an electric field is given by Gauss's law in integral form and is related to...