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A Fast Simulated Annealing Algorithm for the Inversion of Marine Sediment Seismo-Acoustic Parameters
Nonlinear seismo-acoustic inversion is performed using a fast simulated annealing algorithm A high-resolution cost function and the matched-field...
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Very low frequency Ocean Bottom ambient seismic noise and coupling on the shallow continental shelf
Sources of very low frequency (0.01 to 1.0 Hz) ambient seismic noise in the shallow (<100 m) water continental margin sediments are investigated...
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Seismic energy partitioning and scattering in laterally heterogeneous ocean crust
We present finite difference forward models of elastic wave propagation through laterally heterogeneous upper oceanic crust. The finite difference...
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On the validity of the ray approximation for interpreting delay times
This chapter deals with the influence of diffracted waves on tomographic observations. Probably most workers in tomography are aware of the existence...
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Shear Properties of Ocean Sediments Determined from Numerical Modelling of Scholte Wave Data
Recently it has become apparent that shear properties of ocean sediments are most easily determined from measured propagation characteristics of...
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On the Role of Bottom Interface Waves in Ocean Seismo-Acoustics: A Review
Ocean bottom interface waves of the Scholte type (sometimes also called oceanic Rayleigh or Stoneley waves) are guided by the acoustically most...
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The Use of Love Waves to Determine the Geoacoustic Properties of Marine Sediments
The importance of the geoacoustic properties of marine sediments for low-frequency shallow water propagation is well established. Reliable...
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Observations of Interface Waves and Low-Frequency Acoustic Propagation Over a Rough Granite Seabed
Experimental measurements of hydrophone signals from explosive sources in shallow water over a rough granite seabed have revealed several interesting...
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A Comparison of Seismic and Hydroacoustic Measurements at Very Low Frequencies in Different Shallow Water Areas
Numerous sea-trials concerning the detection and propagation of very low frequency sound (2 to 24 Hz) have been conducted by SACLANTCEN, mostly in...
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Interface Wave Studies on the Ligurian Shelf Using an OBS Array: Experimental Results and Propagation Models
Seismic waves travelling in the water/sediment or subbottom sediment/sediment interface have been the subject of considerable interest in recent...
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A Propagation Anomaly Observed in the Barents Sea
A low frequency sound propagation experiment was conducted in the Western Barents Sea from a towed continuous sound source and air-dropped explosive...
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Characterization of Average Geoacoustic Bottom Properties from Expected Propagation Behavior at Very Low Frequencies (VLF) Using a Towed Array Simulation
The purpose of this study is to determine the feasibility of broad georeconnaissance data acquisition for average bottom properties collected via a...
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Ocean Bottom Seismology: History and Current Status
Ocean bottom seismographs (OBS) have been in use for almost 50 years. The earliest instruments were used for short range explosion refraction...
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Energy Fluxes at the Earth’s Surface
Evaporation and sensible heat flux into the atmosphere require the availability of some form of energy at the earth-atmosphere interface. This...
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Atmospheric and Water Waves and Companion Seismic Phenomena
Elastic waves, traveling in the solid body of the earth, sometimes convert part of their energy to other waves that propagate in the water or in the...
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Surface-Wave Amplitude Theory
In Section 3.6, we demonstrated the existence of Rayleigh waves in a homogeneous half-space and Love waves in a two-layered half-space. We also...
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Asymptotic Theory of the Earth’s Normal Modes
We have seen that the complete seismic field induced in a radially heterogeneous sphere can be expressed as an infinite sum of standing waves, namely...
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The interaction of elastic waves with a solid-liquid interface, with applications to the core-mantle boundary
The paper discusses basic ideas and principles underlying methods, which have proved useful in the interpretation of diffraction and scattering...