AL MOMENTO ESAURITO
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Product Identifiers
PublisherSpringer Netherlands
ISBN-109401068852
ISBN-139789401068857
eBay Product ID (ePID)175979338
Product Key Features
Number of Pages304 Pages
Publication NameSeismic Surface Waves in a Laterally Inhomogeneous Earth
LanguageEnglish
Publication Year2011
SubjectPhysics / Geophysics, Earth Sciences / Geology
TypeTextbook
AuthorT. Yanovskaya
Subject AreaScience
SeriesModern Approaches in Geophysics Ser.
FormatTrade Paperback
Dimensions
Item Weight16.7 Oz
Item Length9.3 in
Item Width6.1 in
Additional Product Features
Intended AudienceScholarly & Professional
Preface byIts, E. N., Yanovskaya, T., Lander, A. V.
Dewey Edition19
Series Volume Number9
Number of Volumes1 vol.
IllustratedYes
Dewey Decimal551.2/2
Table Of Content1. Theory.- 1. Surface waves in vertically inhomogeneous media.- 2. Surface waves in media with weak lateral inhomogeneity.- 3. Surface waves in media involving vertical contacts.- 4. Computation techniques for surface waves.- 2. Interpretation of Surface Wave Observations.- 5. Recording, identification, and measurement of surface wave parameters.- 6. Methods for quantitative interpretation of observations.- 7. Some results from studies of regional lithospheric structure by surface waves.- References.
SynopsisSurface waves form the longest and strongest portion of a seismic record excited by explosions and shallow earthquakes. Traversing areas with diverse geologic structures, they 'absorb' information on the properties of these areas which is best retlected in dispersion, the dependence of velocity on frequency. The other prop erties of these waves - polarization, frequency content, attenuation, azimuthal variation of the amplitude and phase - arc also controlled by the medium between the source and the recording station; some of these are affected by the properties of the source itself and by the conditions around it. In recent years surface wave seismology has become an indispensable part of seismological practice. The maximum amplitude in the surface wave train of virtually every earthquake or major explosion is being measured and used by all national and international seismological surveys in the determination of the most important energy parameter of a seismic source, namely, the magnitude M,. The relationship between M, and the body wave magnitude fI1t, is routinely employed in identification of underground nuclear explosions. Surface waves of hundreds of earthquakes recorded every year are being analysed to estimate the seismic moment tensor of earthquake sources, to determine the periods of free oscillations of the Earth, to construct regional dispersion curves from which in turn the crustal and upper mantle structure in various areas is derived, and to evaluate the dissipative parameters of the mantle material., Surface waves form the longest and strongest portion of a seismic record excited by explosions and shallow earthquakes. Traversing areas with diverse geologic structures, they 'absorb' information on the properties of these areas which is best retlected in dispersion, the dependence of velocity on frequency. The other prop- erties of these waves - polarization, frequency content, attenuation, azimuthal variation of the amplitude and phase - arc also controlled by the medium between the source and the recording station; some of these are affected by the properties of the source itself and by the conditions around it. In recent years surface wave seismology has become an indispensable part of seismological practice. The maximum amplitude in the surface wave train of virtually every earthquake or major explosion is being measured and used by all national and international seismological surveys in the determination of the most important energy parameter of a seismic source, namely, the magnitude M, . The relationship between M, and the body wave magnitude fI1t, is routinely employed in identification of underground nuclear explosions. Surface waves of hundreds of earthquakes recorded every year are being analysed to estimate the seismic moment tensor of earthquake sources, to determine the periods of free oscillations of the Earth, to construct regional dispersion curves from which in turn the crustal and upper mantle structure in various areas is derived, and to evaluate the dissipative parameters of the mantle material.
LC Classification NumberQC801-809
