Results 91 to 100 of about 15,948 (253)

An axisymmetric time-domain spectral-element method for full-wave simulations: Application to ocean acoustics

open access: yes, 2016
The numerical simulation of acoustic waves in complex 3D media is a key topic in many branches of science, from exploration geophysics to non-destructive testing and medical imaging.
Alexis Bottero   +8 more
core   +3 more sources

Impact of Mantle Velocity Uncertainty on Receiver‐Function Imaging of the Transition Zone

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Seismological estimates of the 400‐km and 670‐km mantle discontinuities (d400 and d670) are crucial for understanding the thermochemical structure and dynamics of the mantle transition zone (MTZ). However, artifacts from using ray theory and uncertainties in mantle velocity structure can affect topographic mapping of these boundaries.
Carlos A. M. Chaves   +2 more
wiley   +1 more source

Editorial: Applications of wave propagation simulation in complex geological media

open access: yesFrontiers in Earth Science, 2023
Paul Cupillard, Jonas D. De Basabe
doaj   +1 more source

The Detection of Transient Subduction Zone Interface Properties Using Teleseismic Data

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The physical properties of subduction zone interfaces govern the transition between stable aseismic slip, episodic slow slip events (SSEs), and large earthquakes. Ultraslow velocity layers (USVLs) along the megathrust are commonly interpreted as indicators of elevated pore‐fluid pressures that promote slow slip, but their temporal variability ...
F. Rappisi, T. J. Craig, S. Rost
wiley   +1 more source

Calculation of the local rupture speed of dynamically propagating earthquakes

open access: yesAnnals of Geophysics, 2014
The velocity at which a propagating earthquake advances on the fault surface is of pivotal importance in the contest of the source dynamics and in the modeling of the ground motions generation.
Andrea Bizzarri
doaj   +1 more source

Penetration of Warm Slabs Across the 660 km Boundary: The Potential Role of Hydrous Stishovite

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract We investigate the phase boundary of hydrous/anhydrous post‐spinel transition at conditions relevant to the 660 km boundary. For the hydrous ringwoodite decomposition, the slope is found to range from negative to positive values depending on the distribution of water between the final products, namely, bridgmanite, periclase (mostly anhydrous)
Rabindranath Mondal, Swastika Chatterjee
wiley   +1 more source

Quantum Simulation of Variable-Speed Multidimensional Wave Equations via Clifford-Assisted Pauli Decomposition

open access: yesQuantum Reports
The simulation of multidimensional wave propagation with variable material parameters is a computationally intensive task, with applications from seismology to electromagnetics. While quantum computers offer a promising path forward, their algorithms are
Boris Arseniev, Igor Zacharov
doaj   +1 more source

Coronal Seismology and the Propagation of Acoustic Waves Along Coronal Loops

open access: yes, 2004
We use a combination of analytical theory, numerical simulation, and data analysis to study the propagation of acoustic waves along coronal loops. We show that the intensity perturbation of a wave depends on a number of factors, including dissipation of ...
De Moortel, I.   +2 more
core   +2 more sources

A Shape Optimization Approach for Inferring Sources of Volcano Ground Deformation

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract One of the main goals of volcano geodesy is to improve the understanding of how an increase in pressure related to magma accumulation causes ground deformation in order to evaluate volcanic unrest. The inversion methods used for this purpose rely on a parametrization of the shape of the crustal volume in which pressure changes due to magma ...
Théo Perrot   +2 more
wiley   +1 more source

Modern computational methods applied to classical long-period seismology

open access: yes, 2023
Determining the structure of planets is paramount to the understanding of the origin and evolution of planetary systems. As seismic waves propagate freely through planets and interact with discontinuities and material structure, their study, seismology is the predominant discipline to resolve planetary interiors.
openaire   +3 more sources

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