Results 61 to 70 of about 636,438 (150)

Deep Network Reparameterized Full‐Waveform Inversion From Sequential to Simultaneous Sources With Adjoint‐State Method

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Full‐waveform inversion (FWI) relies on sequential‐source (SQ) workflows for high imaging precision, while simultaneous‐source (SML) encoding drastically accelerates computation but introduces irreversible wavenumber discontinuity artifacts in hybrid‐domain implementations.
Jinwei Fang, Jie Chen, Lutz Gross, Qingchen Zhang, Ning Wang   +4 more
wiley   +1 more source

Research on a Deep Learning‐Based Inversion Method for Surface Wave Dispersion Spectra

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract The near‐surface shear‐wave velocity structure is crucial for geological engineering and near‐surface exploration. Surface wave inversion is a key technique for obtaining the velocity structure, but traditional methods suffer from limitations such as heavy reliance on the initial model, high computational cost, and susceptibility to local ...
Yunwei Zhang, Yanyang Song, Xiaofei Chen
wiley   +1 more source

Physics-Guided Self-Supervised Learning Full Waveform Inversion with Pretraining on Simultaneous Source

Journal of Marine Science and Engineering
Full waveform inversion (FWI) is an established precise velocity estimation tool for seismic exploration. Machine learning-based FWI could plausibly circumvent the long-standing cycle-skipping problem of traditional model-driven methods.
Qiqi Zheng, Meng Li, Bangyu Wu
doaj   +1 more source

Adapting a Pretrained LLM to Rapidly Recover Earthquake Magnitude and Location

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Determining earthquake magnitude and location through fast, automated methods is fundamental for seismic monitoring. Recent studies have shown that Large Language Models (LLMs) can operate as pattern‐recognition systems capable of handling novel domains and purely numerical tasks.
Aurora Bassani, Daniele Trappolini, Giulio Poggiali, Elisa Tinti, Fabio Galasso, Alberto Michelini, Chris Marone   +6 more
wiley   +1 more source

A New Experimental Design to Measure Second‐ and Third‐Order Anisotropic Rock‐Stiffness Coefficients Using a Single‐Rock Sample

Geophysical Prospecting, Volume 74, Issue 8, October 2026.
ABSTRACT We developed a new experimental setup for measuring and modelling stress‐induced anisotropy and nonlinearity in cylindrical rock samples. Multidirectional ultrasonic velocity measurements were conducted under laboratory conditions and during triaxial‐stress testing to capture dynamic rock properties. This is done by placing endcap transducers (
Gabriel Gallardo‐Giozza, Domenico Crisafulli, D. Nicolás Espinoza, Carlos Torres‐Verdín   +3 more
wiley   +1 more source

Waveform Inversion of Passive Seismic Data Using Multi-Scattered Energy

, 2018
Locating micro-seismic events highly relies on the velocity accuracy. Full waveform inversion (FWI) has the potential to invert velocity and micro-seismic source image simultaneously.
C. Song, Z. Wu, Alkhalifah, Tariq Ali, Song, Chao, Wu, Z., T. Alkhalifah   +5 more
core   +1 more source

Multisource Seismic Full Waveform Inversion of Metal Ore Bodies

, 2021
The seismic exploration method could explore deep metal ore bodies (depth > 1000 m). However, it is difficult to describe the geometry of the complex metal ore body accurately.
Liguo Han, Zhuo Xu, Pan Zhang, Fengjiao Zhang, Xiangbo Gong   +4 more
core   +1 more source

Attribute-Guided Prestack Seismic Waveform Inversion—Methodology, Applications, and Feasibility to Characterize Underground Reservoirs for Potential Hydrogen Storage

Eng
Prestack seismic waveform inversion starts with an initial model and computes synthetic or predicted seismic data using a wave equation-based approach.
Dwaipayan Chakraborty, Subhashis Mallick
doaj   +1 more source

Fault Slip Reversals Preceded the Intraplate 2021 Earthquake Series in the Vienna Basin (Central Europe)

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Fault‐slip reversals indicate transient stress changes and may illuminate earthquake preparation processes. Here we present high‐resolution observations of sub‐millimetric creep and slip reversals on the Altaquelle Fault, a Quaternary normal fault in the southern Vienna Basin, preceding a regionally significant intraplate earthquake sequence ...
I. Baroň, J. Jelének, M. Rowberry, R. Melichar, M. del Puy Papí‐Isaba, R. Schultz, J. Balek, J. Stemberk, Ľ. Sokol, H. Hausmann, L. Plan, G. Winkler, B. Grasemann, R. Bürgmann   +13 more
wiley   +1 more source

Segmented Moho Uplift and Implications for Magmatic Underplating Beneath the Datong Basin

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Understanding how the deep crust responds to coupled tectonic and magmatic processes is essential for deciphering intracontinental rifting. We apply high‐resolution passive‐source reverse time migration to teleseismic P‐wave receiver functions recorded by a dense seismic array to image the Moho beneath the Datong Basin. Our observations reveal
Chunlong Li, Huai Zhang, Yu Jeffrey Gu, Yicun Guo, Pei He, Guangyao Yin, Yaolin Shi   +6 more
wiley   +1 more source