Seismic moment tensor resolution by waveform inversion of a few local noisy records-I. Synthetic tests
نویسندگان
چکیده
منابع مشابه
Parametrization of general seismic potency and moment tensors for source inversion of seismic waveform data
S U M M A R Y We decompose a general seismic potency tensor into isotropic tensor, double-couple tensor and compensated linear vector dipole using the eigenvectors and eigenvalues of the full tensor. Two dimensionless parameters are used to quantify the size of the isotropic and compensated linear vector dipole components. The parameters have well-defined finite ranges and are suited for non-li...
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s 2013, pp. 5180–5184. Keys, R. & Weglein, A., 1983. Generalized linear inversion and the first born theory for acoustic media, J. Math. Phys., 24,
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The aim of seismic waveform inversion is to estimate the elastic properties of the Earth’s subsurface layers from recordings of seismic waveform data. This is usually accomplished by using constrained optimization often based on very simplistic assumptions. Full waveform inversion uses a more accurate wave propagation model but is extremely difficult to use for routine analysis and interpretati...
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Full waveform inversion (FWI) is an effective and efficient data-fitting technique that has been widely used to produce accurate estimation of model parameters in Geophysics. The efficiency and accuracy of FWI are determined by the three main components: numerical solution for forward problem, gradient calculation and model update which usually involves the optimization method. The success of t...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1996
ISSN: 0956-540X
DOI: 10.1111/j.1365-246x.1996.tb04693.x