Seismic refraction analysis: The path forward
نویسندگان
چکیده
منابع مشابه
Path - integral seismic imaging
A B S T R A C T A new type of seismic imaging, based on Feynman path integrals for waveform modelling , is capable of producing accurate subsurface images without any need for a reference velocity model. Instead of the usual optimization for traveltime curves with maximal signal semblance, a weighted summation over all representative curves avoids the need for velocity analysis, with its common...
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The seismic refraction technique provides a simplified characterization of relatively large volumes of the subsurface in 2-dimensional (distance and depth) profiles. Compression wave (p-wave) velocities, the typical measured geologic material parameter, are a function of the moduli of the various unsaturated material masses in the subsurface profile. In saturated media, p-wave velocities are in...
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In this paper, we are interested in determining the seismic velocity of a shallow under-ground layer from refraction traveltimes measures. We present a study case taken from an experimental seismic survey. The study case is a wide-angle seismic inversion using experimental traveltimes measures and based on ray tracing technique and genetic algorithms. The hypothesis on the velocity distribution...
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Popular belief holds that the cores on chip will grow at an exponential rate, following Moore’s Law, with a commensurate increase in performance. However, by exploring the design space of multicore chips across technologies under a large array of design parameters, we observe that physical constraints in power and off-chip bandwidth prohibit such performance increase. This leads us to conclude ...
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The refraction inverse problem was initially investigated by Herglotz (1907), Bateman (1910), and Wiechert and Geiger (1910) who applied Abel transforms for the inversion of seismic travel-times in radially varying media. For smoothly varying media in the absence of low velocity zones, this formulation provides an inverse solution which includes ray bending. In the presence of low velocity zone...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 2012
ISSN: 0096-3941
DOI: 10.1029/2012eo310012