Last edited by Grolkree
Wednesday, July 22, 2020 | History

3 edition of Scattering and attenuation of high-frequency seismic waves found in the catalog.

Scattering and attenuation of high-frequency seismic waves

Scattering and attenuation of high-frequency seismic waves

development of the theory of coda waves

  • 324 Want to read
  • 30 Currently reading

Published by Dept. of the Interior, U.S. Geological Survey in [Reston, Va.?] .
Written in English

    Subjects:
  • Seismic waves.

  • Edition Notes

    Statementby M. Herraiz and A.F. Espinosa.
    SeriesOpen-file report -- 86-455., U.S. Geological Survey open-file report -- 86-455.
    ContributionsEspinosa, A. F., Geological Survey (U.S.), U.S.-Spain Joint Committee for Scientific and Technological Cooperation.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17803283M

    Seismic attenuation due to wave-induced flow S. R. Pride KEYWORDS: seismic attenuation, poroelasticity, seismic dispersion Citation: Pride, S. R., J. G. Berryman, and J. M. Harris (), Seismic attenuation due to wave-induced flow, J. Geophys. responsible for the effective ‘‘scattering attenuation’’ Q scat 1. Techniques have Cited by: Jun 17,  · By using a pulse method, attenuation and velocity measurements have been made for aluminum and glass rods in the frequency range from 2 to 15 megacycles. The sound pulses are generated by crystals waxed to the surface of the rod. This wax joint limits the band width of the transmitted pulse and measurements are made using long pulses and approach steady state ecole-temps-danse.com by:

    For high-frequency wave propagation, scattering and attenuation, the role of small-scale heterogeneities and surface roughness are all important. The existence of small-scale heterogeneities in the crust and the associated seismic wave scattering have been known among seismologists (e.g., Aki and Richards, ; Wu and Aki, Seismic Scale Effects: Dispersion, Attenuation, and Anisotropy by Multiple Scattering of Waves Yinbin Liu and Douglas R. Schmitt Institute for Geophysical Research, Department of Physics, University of Alberta Summary The multiple scattering of seismic waves in heterogeneous media causes velocity dispersion and waveform distortion. A propagator.

    The global short-period wavefield modelled with a Monte Carlo seismic phonon method sus scattering attenuation. the technique allows the imaging of high-frequency scattered waves that are incoherent between seismograms. We used a similar tech-. For the high‐frequency range the scattered power for common‐mode scattering has a second‐power frequency dependence, which is attributed to velocity perturbations. The scattered power of converted waves reaches a maximum, for the case of an exponential correlation function, .


Share this book
You might also like

Scattering and attenuation of high-frequency seismic waves Download PDF EPUB FB2

Scattering is different from other types of attenuation since the integrated energy in the total wavefield remains constant. Scattering of high-frequency seismic waves demonstrates the existence of small scale heterogeneities in the lithosphere.

from book Seismic Wave Propagation and Scattering in the Heterogeneous Earth: Second Edition (pp) Attenuation of High-Frequency Seismic Waves Chapter · November with 13 Reads.

Taking scalar waves as an example, we introduce an approach for calculating the amount of scattering attenuation in a manner consistent with conventional seismological attenuation measurements. Then, extending the method to elastic waves, we calculate the scattering attenuation of P- and S-waves in inhomogeneous elastic ecole-temps-danse.com by: 1.

Nov 02,  · Taking scalar waves as an example, we present an approach for calculating the amount of scattering attenuation in a manner consistent with conventional seismological attenuation measurements.

Then, extending the method to elastic waves, we calculate the scattering attenuation of P- and S-waves in randomly inhomogeneous elastic ecole-temps-danse.com by: 1.

Apr 01,  · Studying the attenuation properties of high-frequency seismic waves in such complex tectonic setting, therefore, offers an opportunity to enhance our understanding of the medium properties.

3 Data and Method. Waveform data used in this study were selected from regional earthquakes, which occurred between January and ecole-temps-danse.com by: Feb 27,  · In this study, we investigated the relative contributions of irregular topography and small-scale velocity inhomogeneity to the scattering of high-frequency seismic waves separately by 3-D finite difference method (FDM) simulations of seismic wave propagation using high-resolution surface topography and stochastic Scattering and attenuation of high-frequency seismic waves book velocity Cited by: The Effect of Attenuation on Seismic Body Waves.

when the scattering attenuation of seismic waves traveling through a scattering medium is calculated. Attenuation of High-Frequency Seismic. Get this from a library. Scattering and attenuation of high-frequency seismic waves: development of the theory of coda waves. [Miguel Herraiz; A F Espinosa; Geological Survey (U.S.); U.S.-Spain Joint Committee for Scientific and Technological Cooperation.].

Scattering attenuation Scattering attenuation is not energy loss to heat or random motions on the scale of atoms, but rather elastic energy that is scattered and redistributed into directions away from the receiver or into waves arriving in later time windows at the receiver (see Seismic, scattering).

Scattering takes place by reflection. The energy-flux model of seismic coda, developed by Frankel and Wennerberg (), is used to derive path-averaged estimates of scattering (⁠ ⁠) and intrinsic attenuation (⁠ ⁠) for northeastern North ecole-temps-danse.com model predicts the amplitude of the coda wave versus time as a function of frequency, ⁠, and ⁠.A nonlinear inversion scheme is developed that allows for the estimation of Cited by: 2.

Earth Heterogeneity and Scattering Effects on Seismic Waves. Renata Dmowska. Volume 50, Pages () select article Attenuation of Seismic Waves Due to Wave‐Induced Flow and Scattering in Randomly Heterogeneous Poroelastic Continua Chapter 15 Seismogram Envelope Inversion for High‐Frequency Seismic Energy Radiation from.

Focusing on recent developments in the area of seismic wave propagation and scattering, this text combines information from numerous sources to present a coherent introduction to the theory of scattering in acoustic and elastic materials.

The model also explains the pulse‐broadening effect in the high‐frequency direct and early arriving S waves, as other studies have found, and could be very important to applications of high‐frequency wave simulation in which scattering has a strong effect.

We also find that regardless of its physical implications, the isotropic scattering Cited by: 6. S.J. Schön, in Handbook of Petroleum Exploration and Production, Attenuation of Seismic Waves in Sedimentary Rocks.

The study of elastic wave attenuation particularly in sedimentary rocks carries information about rock properties and is important for the design of seismic investigations. The mechanisms and relationships to extract information from attenuation parameters are not.

In addition, in the case SEISMIC WAVES, SCATTERING Wavelength λ Incident wave Mean free path l Scattered wave Propagation incoherent field distance L Scatterer a Correlation length Amplitude phase fluctuations Transmitted wave coherent field Seismic Waves, Scattering, Figure 1 Basic concepts of seismic scattering.

Get this from a library. Seismic wave propagation and scattering in the heterogeneous earth. [Haruo Sato; Michael C Fehler; Takuto Maeda] -- "Seismic waves - generated both by natural earthquakes and by man-made sources - have produced an enormous amount of information about the Earth's interior.

In classical seismology, the Earth is. Scattering and Attenuations of Seismic Waves, Part I. Authors: AKI, WU. Free Preview. Buy this book Multiple Scattering and Energy Transfer of Seismic Waves—Separation of Scattering Effect from Intrinsic Attenuation II. Application of the Theory to Hindu Kush Region Seismic Wave Attenuation in Fluid-Saturated Porous ecole-temps-danse.com: Birkhäuser Basel.

@article{osti_, title = {Mechanisms of seismic attenuation in the crust: Scattering and anelasticity in New York State, South Africa, and southern California}, author = {Frankel, A.}, abstractNote = {The envelopes of high-frequency seismograms from earthquakes in New York State, South Africa, and southern California are analyzed to determine how much of the observed attenuation of shear Author: Frankel, A.

Observations of continuous wave trains that follow classic direct S waves, known as coda waves, have shown that there are heterogeneities of random size scattered randomly throughout the layers of the classic seismic model. This book focuses on recent developments in the area of seismic wave propagation and scattering through the randomly.

tions. For high-frequency wave propagation, scattering and attenuation, the role of small-scale heterogeneities and surface roughness are all important.

The existence of small-scale heterogeneities in the crust and the associated seismic wave scattering have been known among seismologists (e.g., Aki. In engineering, attenuation is usually measured in units of decibels per unit length of medium (dB/cm, dB/km, etc.) and is represented by the attenuation coefficient of the medium in question.

Attenuation also occurs in earthquakes; when the seismic waves move farther away from the hypocenter, they grow smaller as they are attenuated by the ground.Seismic wave attenuation and dispersion resulting from wave-induced flow in porous rocks — A review Tobias M.

Müller1, Boris Gurevich2, and Maxim Lebedev3 ABSTRACT One major cause of elastic wave attenuation in heterogeneous.Dispersive body waves is an important aspect of seismic ecole-temps-danse.com 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 prospecting. The attendant dispersion is a necessary consequence of the energy dissipation and.