Results 211 to 220 of about 560,268 (250)

Three dimensional magnetization structure of the Tofua Arc 12 seamount constrained by magnetization vector inversion. [PDF]

Sci Rep
Choi SY, Kim HR, Ko YT, Kim W-, Choi H-, Do JD, Kim CH.   +6 more
europepmc   +1 more source

Improved GNSS‐Based Estimates of Terrestrial Water Storage in California Through Suppression of Non‐Elastic Loading Signals

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Accurate estimation of terrestrial water storage (TWS) variations is important for understanding climate change and managing water resources. Satellite gravimetry has been a unique tool for this purpose, but has inherently low spatial resolution.
Kookhyoun Youm, Ki‐Weon Seo, Jae‐Seung Kim, Jianli Chen, Clark R. Wilson   +4 more
wiley   +1 more source

Inversion analysis of the stress field in a pumped-storage power station based on the PSO-XGBoost and the finite element model. [PDF]

Sci Rep
Wang J, Yao R, Li B, Zhang C.
europepmc   +1 more source

Wavefront sensing at a high‐repetition‐rate X‐ray free‐electron laser

Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1255-1268, September 2026.
We demonstrate a fast, robust and sensor‐free approach to X‐ray speckle tracking that enables shot‐to‐shot wavefront characterization at high‐repetition‐rate X‐ray free‐electron lasers. Our measurements reveal a hierarchy of wavefront fluctuations indicative of instabilities in the accelerator and beamline optics at the European XFEL.Wavefront ...
Trey Guest, Patrik Vagovič, Luigi Adriano, Johan Bielecki, Sarlota Birnsteinova, Rita Graceffa, Jayanath Koliyadu, Kaye Morgan, Hiiro Moriyama, Daniel Mosko, Grant van Riessen, Kristian Sabol, Tokushi Sato, Peter Szeles, Zane Taylor, Jozef Uličný, Richard Bean, Adrian P. Mancuso, Brian Abbey   +18 more
wiley   +1 more source

Imaging subsurface structures near wells in the northwest Geysers geothermal site. [PDF]

Sci Rep
Shirzad T, Kazemnia M, Orlecka-Sikora B, Bokelmann G, Aryana SA.   +4 more
europepmc   +1 more source

Time‐Reversal Full Wavefield Inversion: From Waveform Misfit to Wavefield Focus

Geophysical Prospecting, Volume 74, Issue 7, September 2026.
ABSTRACT We introduce time‐reversal full wavefield inversion (TRFWI), a velocity‐model‐building method that replaces waveform‐misfit minimization with a physically motivated wavefield‐focusing criterion. The recorded data are reversed in time and backpropagated through a trial velocity model; the inversion objective is the degree to which the wavefield
Evgeny Landa, Sergey Fomel
wiley   +1 more source

A seismic reservoir permeability prediction approach based on gaussian process machine learning. [PDF]

Sci Rep
Gui J, Gao J, Li S, Liu B, Guo X, Pan H.
europepmc   +1 more source

New Acoustic Pure P‐ and S‐Wave Equations for Modelling and Reverse Time Migration in Tilted Transversely Isotropic Media

Geophysical Prospecting, Volume 74, Issue 7, September 2026.
ABSTRACT To reduce information loss in seismic imaging of complex geological media, it is essential to account for anisotropy, particularly in tilted transversely isotropic (TTI) formations–the most common anisotropy in exploration geophysics. However, the elastic wave equations governing such media inherently couple P$P$‐ and S$S$‐waves, whereas ...
Lucas S. Bitencourt, Reynam C. Pestana
wiley   +1 more source

Integrated reservoir quality index (IRQI): a novel approach for reservoir quality assessment. [PDF]

Sci Rep
Leisi A, Kadkhodaie A, Kadkhodaie R.
europepmc   +1 more source

An Eikonal‐Based Angle‐Domain Least‐Squares Kirchhoff Depth Migration in General Anisotropic Media

Geophysical Prospecting, Volume 74, Issue 7, September 2026.
ABSTRACT Least‐squares migration (LSM) is an inversion‐based imaging method that seeks a reflectivity model whose predicted data best fit the recorded seismic data in a least‐squares sense. However, conventional LSM can be unreliable for anisotropic reflection data if reflection angles are neglected.
Paulo H. B. Alves, Wei Zhang, Mauricio D. Sacchi, Marco Cetale   +3 more
wiley   +1 more source