Sinossi
I. Theory.- A. Derivation.- A Review of the Derivations of the Formulas for the Acoustical Properties of Liquid-Solid Mixtures.- Acoustic Waves in Saturated Sediments.- B. Interpretation.- Acoustic and Mechanical Loading of Marine Sediments.- Influence of Anisotropy and Soil Structure on Elastic Properties of Sediments.- The Seismic Wide Angle Reflection Method in the Study of Ocean Sediment Velocity Structure.- Sonobuoy Measurements in Thin Layers.- II. Applications.- The Interaction of Underwater Acoustics and Marine Geophysics.- Underwater Sound Transmission Through the Ocean Floor.- Geoacoustic Models of the Sea Floor.- Sound Propagation Calculations Using Bottom Reflection Functions.- III. Measurement Techniques.- Nonlinear Acoustics and Its Role in the Sedimentary Geophysics of the Sea.- Near-Bottom Acoustic Observations of Abyssal Topography and Reflectivity.- Remote Sediment Classification Potential of Reflected Acoustic Signals.- Measurement of Viscoelastic Properties of Sediments Using a Torsionally Vibrating Probe.- A Method for Measuring In Situ Acoustic Properties During Sediment Coring.- IV. Measurement Results.- Acoustic Estimates of the Topography and Roughness Spectrum of the Sea Floor Southwest of Iberian Peninsula.- Acoustical Characteristics of the Sea Floor: Experimental Techniques and Some Examples from the Mediterranean Sea.- Statistical Correlation of Physical Properties and Sound Velocity in Sediments.- Preliminary Study of Global Sediment Sound Velocities from Sonobuoy Data.- Measurements of Reflectivity by Explosive Signals.
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