Seismic wavefield imaging of Earth's interior across scales
J Tromp - Nature Reviews Earth & Environment, 2020 - nature.com
Seismic full-waveform inversion (FWI) for imaging Earth's interior was introduced in the late
1970s. Its ultimate goal is to use all of the information in a seismogram to understand the …
1970s. Its ultimate goal is to use all of the information in a seismogram to understand the …
Uncertainty and resolution analysis of 2D and 3D inversion models computed from geophysical electromagnetic data
Z Ren, T Kalscheuer - Surveys in Geophysics, 2020 - Springer
A meaningful solution to an inversion problem should be composed of the preferred
inversion model and its uncertainty and resolution estimates. The model uncertainty …
inversion model and its uncertainty and resolution estimates. The model uncertainty …
Seismic structure of the upper mantle beneath eastern Asia from full waveform seismic tomography
To better understand the subsurface behavior of subducting slabs and their relation to the
tectonic evolution of the overriding plate, we conduct a full waveform inversion on a large …
tectonic evolution of the overriding plate, we conduct a full waveform inversion on a large …
Global adjoint tomography—model GLAD-M25
Building on global adjoint tomography model GLAD-M15, we present transversely isotropic
global model GLAD-M25, which is the result of 10 quasi-Newton tomographic iterations with …
global model GLAD-M25, which is the result of 10 quasi-Newton tomographic iterations with …
Global adjoint tomography: first-generation model
E Bozdağ, D Peter, M Lefebvre… - … Supplements to the …, 2016 - academic.oup.com
We present the first-generation global tomographic model constructed based on adjoint
tomography, an iterative full-waveform inversion technique. Synthetic seismograms were …
tomography, an iterative full-waveform inversion technique. Synthetic seismograms were …
On the use of sensitivity tests in seismic tomography
N Rawlinson, W Spakman - Geophysical Journal International, 2016 - academic.oup.com
Sensitivity analysis with synthetic models is widely used in seismic tomography as a means
for assessing the spatial resolution of solutions produced by, in most cases, linear or …
for assessing the spatial resolution of solutions produced by, in most cases, linear or …
Bayesian elastic full‐waveform inversion using Hamiltonian Monte Carlo
L Gebraad, C Boehm, A Fichtner - Journal of Geophysical …, 2020 - Wiley Online Library
We present a proof of concept for Bayesian elastic full‐waveform inversion in 2‐D. This is
based on (1) Hamiltonian Monte Carlo sampling of the posterior distribution,(2) the …
based on (1) Hamiltonian Monte Carlo sampling of the posterior distribution,(2) the …
An automatically updated S‐wave model of the upper mantle and the depth extent of azimuthal anisotropy
Abstract We present 3D2015_07Sv, an S wave model of the upper mantle based on the
waveform modeling of 1,359,470 Rayleigh waves recorded since 1976. The use of …
waveform modeling of 1,359,470 Rayleigh waves recorded since 1976. The use of …
A Bayesian approach to estimate uncertainty for full-waveform inversion using a priori information from depth migration
Full-waveform inversion (FWI) enables us to obtain high-resolution subsurface images;
however, estimating model uncertainties associated with this technique is still a challenging …
however, estimating model uncertainties associated with this technique is still a challenging …
The collaborative seismic earth model: generation 1
A Fichtner, DP van Herwaarden… - Geophysical …, 2018 - Wiley Online Library
We present a general concept for evolutionary, collaborative, multiscale inversion of
geophysical data, specifically applied to the construction of a first‐generation Collaborative …
geophysical data, specifically applied to the construction of a first‐generation Collaborative …