Results 81 to 90 of about 5,330 (213)

Geoelectric Field Estimations During Geomagnetic Storm in North China From SinoProbe Magnetotelluric Impedances

open access: yesSpace Weather
Evaluating the impact of geomagnetic disturbances on power grid infrastructure is critical to mitigate the risk posed by geomagnetically induced currents (GICs).
Qihe Shao   +6 more
doaj   +1 more source

Low‐Frequency Polarization of Blank Ice Features in Solid Rocks

open access: yesGeophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract For hydrogeological management of seasonally frozen soils, or permafrost, the quantification of ice and water content is key. Changes in electrical conductivity are commonly used to monitor ice‐to‐water ratios but hard rocks, ice and air are all highly resistive materials.
Clemens Moser, Adrián Flores Orozco
wiley   +1 more source

The Effect of Tidal Geoelectric Fields on GIC and PSP in Buried Pipelines

open access: yesIEEE Access, 2019
Compared with the investigation of geomagnetically induced currents (GIC) in power grids, there is less study about the effect of geomagnetic disturbance (GMD) on buried oil and gas pipelines in mid-low latitude areas, which includes GIC and pipe-to-soil
Lianguang Liu   +3 more
doaj   +1 more source

Capturing soil moisture and salinity changes in flooded coastal forests using electrical resistivity and induced polarization

open access: yesVadose Zone Journal, Volume 25, Issue 1, January/February 2026.
Abstract Geophysical methods provide high‐resolution spatial measurements of physical quantities sensitive to changes in soil moisture and salinity and can be used to monitor soil hydrological responses to flooding. However, extracting quantitative hydrological information from geophysical data remains challenging.
Moses B. Adebayo   +10 more
wiley   +1 more source

Discussion on the sea–land telluric current vector and its continuity during a geomagnetic storm based on coastal stations in China and Canada

open access: yesGeomatics, Natural Hazards & Risk, 2019
The sea-land telluric current vector and its continuity during two geomagnetic storms are discussed using observation data of 13 geoelectric field stations within 100 km of the coastline in China and 5 similar stations in Canada.
Xin Zhang, Qing Ye, Gaochuan Liu
doaj   +1 more source

Nem-konvencionális geoelektromos elrendezések = Non-conventional geoelectrical arrays [PDF]

open access: yes, 2009
Négy új módszert fejlesztettünk ki, vizsgáltuk azok elméleti alapjait, megteremtettük a működtetésükhöz szükséges hardveres és szoftveres hátteret és tanulmányoztuk azok terepi használhatóságát.
Novák, Attila   +3 more
core  

Regional Three‐Dimensional Magnetotelluric Electrical Resistivity Model of the Manica Greenstone Belt, Western Mozambique

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract Magnetotelluric (MT) survey results from the Late Archean Manica greenstone belt, an extension of the Odzi‐Mutare greenstone belt of the Zimbabwe Craton, are presented. A total of 33 MT stations were acquired on an irregular grid with an average station spacing of approximately 5 km.
Joao Jr. J. Castelo   +4 more
wiley   +1 more source

Multi‐Scale Intense Geoelectric and Geomagnetic Field Perturbations Observed After an Interplanetary Magnetic Field Turning

open access: yesSpace Weather
Intense geoelectric fields during geomagnetic storms generate geomagnetically induced currents in power grids and other infrastructure, necessitating an understanding of their causes, for example, through coordinated space and ground observations.
Xueling Shi   +8 more
doaj   +1 more source

Numerical Calculation of Geoelectric Fields That Affect Critical Infrastructure

open access: yesInternational Journal of Geosciences, 2019
One of the modern applications of geomagnetism is determining the effect of geomagnetic disturbances on critical infrastructure such as power systems and pipelines. Assessing the geomagnetic hazard to such systems requires calculation of the geoelectric fields produced during geomagnetic disturbances.
David H. Boteler, Risto J. Pirjola
openaire   +2 more sources

Study on the background characteristics of electric fields constrained by cross-sphere observations

open access: yesEarth, Planets and Space
The interactions among Earth’s spheres constitute both the starting point and ultimate goal of Earth system science research. An in-depth investigation into these interactions is essential for advancing the interdisciplinary integration and collaborative
MuPing Yang   +7 more
doaj   +1 more source

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