Results 61 to 70 of about 4,199 (222)

Geoelectric signals in China and the earthquake generation process

, 1996
We present original apparent resistivity records for stations located in the Chinese provinces of Hebei and Sichuan, along with seismicity patterns, fault maps, and limited hydrologic data.
Gui X., Dai J., Spiegelman M. W., Seeber L., Armbruster J. G., Chu J. J., Marone C. J.   +6 more
core   +1 more source

PRELIMINARY ESTIMATION OF IGNEOUS ROCK RESERVE OF QUARRY MATERIALS USING GEOELECTRIC METHOD IN BIYUKU VILLAGE, BANGKO DISTRICT, JAMBI PROVINCE

JGE
The earth's subsurface can be composed of various rocks such as igneous rocks, sedimentary rocks, and metamorphic rocks. Determination of rock types below the surface is carried out using geophysical methods. This study aims to identify Rhyolite-Andesite
Rizky Ramadhan Dwiyantoro, Fauzi Daffa Hanatha, Febry Anugrah   +2 more
doaj   +1 more source

Academic Achievement and Conceptual Understanding of Electrodynamics: Applications Geoelectric Using Cooperative Learning Model

Jurnal Ilmiah Pendidikan Fisika Al-Biruni, 2019
Students' comprehension of the theory is often implemented as an effort to improve their achievements. However, other learning processes are rarely carried out by teachers, such as the practice or tools uses as the lesson application. The purpose of this
Rizqi Prastowo, Syamsul Huda, Rofiqul Umam, Kittisak Jermsittiparsert, Andika Eko Prasetiyo, Hasan Said Tortop, Muhamad Syazali   +6 more
doaj   +1 more source

Feasibility of Crosshole Seismic Tomography for Monitoring In Situ CO2 Mineral Storage in Basalts: A Rock Physics‐ and Seismic Modeling Study

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract In situ CO2 mineral storage is gaining increasing attention as a carbon capture and storage (CCS) technology to reduce anthropogenic CO2 emissions. So far, in situ CO2 mineral storage projects have been monitored predominantly using fluid‐ and isotope geochemical methods.
Jonas Simon Junker, Hansruedi Maurer, Alba Zappone, Sin‐Mei Wu, Anne Obermann   +4 more
wiley   +1 more source

Rapid and High‐Accuracy Three‐Dimensional Airborne Transient Electromagnetic Forward Modeling Based on Machine Learning

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Conventional numerical methods for computing three‐dimensional (3D) airborne transient electromagnetic (ATEM) forward modeling suffer from low computational efficiency and high computational cost. Although deep learning techniques have achieved some progress in accelerating low‐dimensional ATEM forward modeling, high‐accuracy and efficient 3D ...
Xuben Wang, Shuang Wang, Peifan Jiang, Fei Deng, Yuanhao Li   +4 more
wiley   +1 more source

Estimating the Geoelectric Field and Electric Power Transmission Line Voltage During a Geomagnetic Storm in Alberta, Canada Using Measured Magnetotelluric Impedance Data: The Influence of Three‐Dimensional Electrical Structures in the Lithosphere

Space Weather, 2021
Estimating the effect of geomagnetic disturbances on power grid infrastructure is an important problem since they can induce damaging currents in electric power transmission lines. In this study, an array of magnetotelluric (MT) impedance measurements in
Darcy Cordell, Martyn J. Unsworth, Benjamin Lee, Cedar Hanneson, David K. Milling, Ian R. Mann   +5 more
doaj   +1 more source

Validating SCUBAS Predictions of Geomagnetically Induced Voltage in Submarine Cables Using Legacy Superstorm Observations

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Modern submarine communication cables, though fiber‐optic in nature, remain vulnerable to space weather hazards due to their internal conductive cables used for powering repeaters. During geomagnetic storms, variations in the geomagnetic field induce geoelectric fields that drive geomagnetically induced voltages along these cables.
S. Chakraborty, M. D. Hartinger, X. Shi, D. H. Boteler, E. Lawrence, C. Boteler, J. B. H. Baker, M. Macalester   +7 more
wiley   +1 more source

Geoelectric Field Caused by Flux Transfer Events in an Ionosphere‐Coupled Vlasiator Simulation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract We report on the relationship between flux transfer events (FTEs) at Earth's magnetopause and the geoelectric field that is induced near the FTEs' magnetic footpoints. We study this system using the global hybrid‐Vlasov code Vlasiator, which has recently been extended to model ionospheric physics.
K. Horaites, M. Alho, Y. Pfau‐Kempf, U. Ganse, A. Workayehu, J. Suni, F. Tesema, L. Juusola, G. Cozzani, S. Hoilijoki, I. Zaitsev, S. Kavosi, M. Palmroth   +12 more
wiley   +1 more source

Analysis of some error-causing factors in two-dimensional geoelectrical studies and providing a solution to minimize them

Journal of Economic Geology
In recent years, two-dimensional geoelectrical surveys have become one of the common and conventional methods in mineral exploration, groundwater resources investigations, engineering geophysics, archeology, etc.
Hosein Moghaddasi, Mohsen Moghaddasi , Ahmad Neyamadpour   +2 more
doaj   +1 more source

Importance of High Cadence Magnetometer Data for Investigating Geomagnetic Disturbances

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Geomagnetic disturbances (GMDs) are rapid changes in the magnetic field of the Earth that may drive geomagnetically induced currents (GICs), known to cause damage to infrastructure such as power grids and pipelines. Globally, GIC measurements are often hard to obtain; therefore, GMDs are used as a proxy for GICs.
G. E. Bower, S. M. Imber, S. E. Milan, C. Beggan, J. W. Gjerloev   +4 more
wiley   +1 more source