Results 101 to 110 of about 15,948 (253)

Modelling Fast-Alfv\'en Mode Conversion Using SPARC

open access: yes, 2013
We successfully utilise the SPARC code to model fast-Alfv\'en mode conversion in the region $c_A \gg c_S$ via 3-D MHD numerical simulations of helioseismic waves within constant inclined magnetic field configurations.
Cally, P S, Moradi, H
core   +1 more source

Computational Elastic Wave Propagation: Advances in Global and Regional Seismology

open access: yes, 2005
We report advances in simulating wave propagation in the Earth's interior in 2D and 3D using several numerical methods. For the Earth's deep interior simulations are carried out on a global scale using axi-symmetric models and 3D spherical sections. In addition, we calculate earthquake scenarios on a regional scale for prediction of ground motion (e.g.
Brietzke, G.   +7 more
openaire   +4 more sources

Is the Deep Martian Mantle Heterogeneous? A Reappraisal of Seismological Evidences

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract It has been proposed that the deep Martian mantle contains distributed heterogeneities preserved since the accretion of the planet. This result relies on a multiple‐scattering interpretation of frequency‐dependent arrival times of P $P$‐waves detected in the spectrograms of teleseismic Martian events.
L. Margerin
wiley   +1 more source

Magnetic Coupling in the Quiet Solar Atmosphere

open access: yes, 2009
Three kinds of magnetic couplings in the quiet solar atmosphere are highlighted and discussed, all fundamentally connected to the Lorentz force. First the coupling of the convecting and overshooting fluid in the surface layers of the Sun with the ...
A Tritschler   +89 more
core   +2 more sources

Sulfur‐Bearing hcp Iron for Earth's Inner Core

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Earth's iron core is believed to contain light impurities which should have been included during core formation. In order to place constraints on core composition, here we report the effect of sulfur on density of hexagonal close‐packed (hcp) iron which was not previously examined, using laser‐heated diamond anvil cells with in situ ...
Emiko Sugimura‐Komabayashi   +7 more
wiley   +1 more source

Seismic Design of Concrete Dams: An Integrated Risk‐Informed Performance‐Based (RIPB) Framework

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 5, Page 1019-1049, 25 April 2026.
ABSTRACT This paper advances the integration of risk‐informed principles into the seismic design of dams—a domain long guided by standards‐based, largely deterministic approaches. While performance‐based earthquake engineering is well established for buildings and bridges, its systematic adoption in dam engineering remains limited. We first address two
M. Amin Hariri‐Ardebili, Larry K. Nuss
wiley   +1 more source

Seismology of adolescent neutron stars: Accounting for thermal effects and crust elasticity

open access: yes, 2014
We study the oscillations of relativistic stars, incorporating key physics associated with internal composition, thermal gradients and crust elasticity. Our aim is to develop a formalism which is able to account for the state-of-the-art understanding of ...
Andersson, N.   +2 more
core   +1 more source

Deep Quake Dynamics: A Multimodal Fault‐Aware Approach to Earthquake Magnitude and Occurrence Time Forecasting

open access: yesGeoscience Data Journal, Volume 13, Issue 2, April 2026.
EQMT integrates earthquake catalog data, fault‐network geometry, engineered features, and graph embeddings in a unified framework for forecasting earthquake magnitude and occurrence time. The framework is designed to reflect inter‐fault spatial dependencies together with temporal seismic patterns, addressing limitations of approaches based only on ...
Kiymet Kaya   +5 more
wiley   +1 more source

A General Framework for Multivariate Functional Principal Component Analysis of Amplitude and Phase Variation

open access: yes, 2018
Functional data typically contains amplitude and phase variation. In many data situations, phase variation is treated as a nuisance effect and is removed during preprocessing, although it may contain valuable information.
Gabriel, Alice-Agnes   +3 more
core   +1 more source

Monitoring of water volume in a porous reservoir using seismic data: Validation of a numerical model with a field experiment

open access: yesNear Surface Geophysics, Volume 24, Issue 2, Page 110-127, April 2026.
Abstract As global groundwater levels continue to decline rapidly, there is a growing need for advanced techniques to monitor and manage aquifers effectively. This study focuses on validating a numerical model using seismic data from a small‐scale experimental setup designed to estimate water volume in a porous reservoir.
Mahnaz Khalili   +8 more
wiley   +1 more source

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