Dispersive body waves
http://rses.anu.edu.au/~nick/teachdoc/lecture4.pdf WebJul 1, 1976 · The contention that dissipation within the body of the earth has only a second-order effect on the eigen-frequencies of the free oscillations arises from the neglect of the dispersion that must accompany attenuation. ... Dispersive body waves. J. Geophys. Res., 67 (1962), pp. 5279-5291. Google Scholar. Jackson, 1971. D.D. Jackson. The ...
Dispersive body waves
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WebJul 1, 1994 · Wuenschel (1965) and ative medium, to preserve causality body waves Doornbos (1983) measured body-wave dispersion must be dispersive, and that attenuation and dis- by comparing real data with synthetic seismo persion are related through Kramersronig grams, Jacobson (1987) used a phase analysis, McLaughlin and … WebBody‐wave dispersion is documented for a three‐dimensional case using the pulse propagation experiment in the Pierre Shale conducted by McDonal et al. (1958) and for a …
http://rses.anu.edu.au/~nick/teachdoc/lecture5.pdf WebApr 24, 2024 · It is easy to show that dispersive waves have unequal phase and group velocities, while these velocities are equal for non-dispersive waves. Derivation of Group Velocity Formula Figure 1.16: Upper panel: Net displacement of the sum of two traveling sine waves plotted in the \(x \) - \(t \) plane. The white indicates where the displacement …
WebABSTRACT Amplitude-variation-with-offset (AVO) inversion is based on single interface reflectivity equations. It involves some restrictions, such as the small-angle approximation, including only primary reflections, and ignoring attenuation. To address these shortcomings, the analytical solution of the 1D viscoelastic wave equation is used as the forward … WebAlthough the attenuation of body waves in an infinite medium has often been considered, little emphasis is usually given to the attendant dispersion, which is a necessary …
WebAlthough the attenuation of body waves in an infinite medium has often been considered, little emphasis is usually given to the attendant dispersion, which is a necessary consequence of the medium absorption and is determined unambiguously by it. Dispersion equations are obtained from the application of an integral transform in the frequency ...
WebDispersive body waves is an important aspect of seismic theory. When a wave propagates through subsurface materials both energy dissipation and velocity dispersion takes … teori keagenan ichsan 2013WebWaves affected by dispersion have a different wave train shape. Rayleigh waves on ideal, homogeneous and flat elastic solids show no dispersion, as stated above. ... and are termed body waves. Rayleigh waves are generated by the interaction of P- and S- waves at the surface of the earth, and travel with a velocity that is lower than the P-, S ... teori keagenan dengan profitabilitasWebIn Section 6.2 we discuss evanescent waves. Certain dispersive systems support sinusoidal waves only if the frequency is above or below a certain cutofi value. We will determine what happens when these bounds are crossed. In Section 6.3 we discuss the group velocity, which is the speed with which a wave packet (basically, a bump in the … teori keagenan jensen dan meckling dalam 2020WebBody-wave dispersion is documented for a three-dimensional case using the pulse propagation experiment in the Pierre Shale conducted by McDonal et al. (1958) and for a … teori keagenan jurnalWebAug 31, 2016 · For non-dispersive body waves, the seismic velocity is equal to both the phase and group velocities; for dispersive surface waves, the seismic velocity is usually taken to be the phase velocity. Seismic … teori keagenan jensen dan meckling 1976WebMar 29, 2024 · Dispersive body waves is an important aspect of seismic theory. When a wave propagates through subsurface materials both energy dissipation and velocity dispersion takes place. Energy dissipation is frequency dependent and causes decreased resolution of the seismic images when recorded in seismic pr teori keagenan menurut ahliWebIn Section 6.2 we discuss evanescent waves. Certain dispersive systems support sinusoidal waves only if the frequency is above or below a certain cutofi value. We will … teori keagenan menurut jensen dan meckling