Results 21 to 30 of about 118,194 (289)
Advances in surface-wave tomography for near-surface applications
The Leading Edge, 2021 Abstract Surface-wave (SW) tomography is a technique that has been widely used in the field of seismology. It can provide higher resolution relative to the classical multichannel SW processing and inversion schemes that are usually adopted for near-surface applications.
Papadopoulou M. +3 more
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Study on surface-wave tomography in Abaga volcanic area, Inner Mongolia
Frontiers in Earth Science, 2023 In this paper, the 3-D S-wave velocity structure of the crust and upper mantle in the Abaga volcanic area of Inner Mongolia was inverted by using the surface-wave tomography method, with a resolution of 0.5°×0.5°.
Jie Hou +5 more
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Fully nonlinear inversion of fundamental mode surface waves for a global crustal model [PDF]
, 2007 We use neural networks to find 1-dimensional marginal probability density functions (pdfs) of global crustal parameters. The information content of the full posterior and prior pdfs can quantify the extent to which a parameter is constrained by the data.
A. Curtis +21 more
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Regional-scale joint seismic body- and surface-wave travel time tomography
地球与行星物理论评, 2023 To make full use of seismograms to put tight constraints on the structure of subsurface and earthquake sources has always been the research focus in seismology.
Hongjian Fang +3 more
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On crustal corrections in surface wave tomography [PDF]
Geophysical Journal International, 2008 SUMMARY Mantle models from surface waves rely on good crustal corrections. We investigated how far ray theoretical and finite frequency approximations can predict crustal corrections for fundamental mode surface waves. Using a spectral element method, we calculated synthetic seismograms in transversely isotropic PREM and in the 3-D crustal model ...
Bozdag, E., Trampert, J.
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S wave velocity structure below central Mexico using high-resolution surface wave tomography [PDF]
, 2010 Shear wave velocity of the crust below central Mexico is estimated using surface wave dispersion measurements from regional earthquakes recorded on a dense, 500 km long linear seismic network.
Clayton, R. W. +6 more
core +1 more source
Joint Inversion of Surface Wave Tomography and Body Wave Tomography Applied to 2D Media
82nd EAGE Annual Conference & Exhibition, 2021 Summary Surface Wave Tomography is used to obtain a shear wave velocity model by inverting computed dispersion curves. Body Wave Tomography is used to obtain a longitudinal wave model through travel time inversion of picked first break travel times. Individual inversions suffer from various different limitations.
Karimpour, M., Slob, E., Socco, L. V.
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Frontiers in Earth Science, 2023 The tectonic evolution and deformation process of the southeastern Tibetan Plateau has been one of the focuses of the geoscience community in recent decades.
Zhiqi Zhang +5 more
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On the Adjoint Operator in Photoacoustic Tomography [PDF]
, 2016 Photoacoustic Tomography (PAT) is an emerging biomedical "imaging from coupled physics" technique, in which the image contrast is due to optical absorption, but the information is carried to the surface of the tissue as ultrasound pulses. Many algorithms
Arridge, Simon R. +4 more
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Geochemistry, Geophysics, Geosystems, 2020 The oceanic lithosphere is a primary component of the plate tectonic system, yet its evolution and its asthenospheric interaction have rarely been quantified by in situ imaging at slow spreading systems.
Nicholas Harmon +5 more
doaj +1 more source