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 …

Seismic imaging: From classical to adjoint tomography

Q Liu, YJ Gu - Tectonophysics, 2012 - Elsevier
Seismic tomography has been a vital tool in probing the Earth's internal structure and
enhancing our knowledge of dynamical processes in the Earth's crust and mantle. While …

Solving the frequency-domain acoustic VTI wave equation using physics-informed neural networks

C Song, T Alkhalifah, UB Waheed - Geophysical Journal …, 2021 - academic.oup.com
Frequency-domain wavefield solutions corresponding to the anisotropic acoustic wave
equation can be used to describe the anisotropic nature of the Earth. To solve a frequency …

Versatile, scalable, and accurate simulation of distributed applications and platforms

H Casanova, A Giersch, A Legrand, M Quinson… - Journal of Parallel and …, 2014 - Elsevier
The study of parallel and distributed applications and platforms, whether in the cluster, grid,
peer-to-peer, volunteer, or cloud computing domain, often mandates empirical evaluation of …

Measuring the misfit between seismograms using an optimal transport distance: Application to full waveform inversion

L Métivier, R Brossier, Q Mérigot… - … Supplements to the …, 2016 - academic.oup.com
Full waveform inversion using the conventional L 2 distance to measure the misfit between
seismograms is known to suffer from cycle skip**. An alternative strategy is proposed in …

[КНИГА][B] Data assimilation: methods, algorithms, and applications

M Asch, M Bocquet, M Nodet - 2016 - SIAM
This book places data assimilation (DA) into the broader context of inverse problems and the
theory, methods, and algorithms that are used for their solution. It strives to provide a …

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 …

A computational framework for infinite-dimensional Bayesian inverse problems Part I: The linearized case, with application to global seismic inversion

T Bui-Thanh, O Ghattas, J Martin, G Stadler - SIAM Journal on Scientific …, 2013 - SIAM
We present a computational framework for estimating the uncertainty in the numerical
solution of linearized infinite-dimensional statistical inverse problems. We adopt the …

Modular and flexible spectral-element waveform modelling in two and three dimensions

M Afanasiev, C Boehm, M van Driel… - Geophysical Journal …, 2019 - academic.oup.com
In this paper, we present a series of mathematical abstractions for seismologically relevant
wave equations discretized using finite-element methods, and demonstrate how these …

Topological rainbow trap** for elastic energy harvesting in graded Su-Schrieffer-Heeger systems

GJ Chaplain, JM De Ponti, G Aguzzi, A Colombi… - Physical Review …, 2020 - APS
We amalgamate two fundamental designs from distinct areas of wave control in physics, and
place them in the setting of elasticity. Graded elastic metasurfaces, so-called metawedges …