Results 11 to 20 of about 231 (130)
Geoelectric fields and geomagnetically induced currents during the April 23–24, 2023 geomagnetic storm [PDF]
Scientific ReportsWe present a study on the dynamical variations of geoelectric fields E during the intense geomagnetic storm of April 23–24, 2023. The storm is caused by the interplanetary counterpart of a coronal mass ejection erupted from the Sun in association with an
Anna Wawrzaszek +2 more
exaly +3 more sources
Space Weather, 2022 Intense geoelectric fields during geomagnetic storms drive geomagnetically induced currents in power grids and other infrastructure, yet there are limited direct measurements of these storm‐time geoelectric fields.
Xueling Shi, M D Hartinger, J B H Baker
exaly +2 more sources
Analytic Calculation of Geoelectric Fields Due to Geomagnetic Disturbances: A Test Case
IEEE Access, 2019 Geomagnetic field variations produce geoelectric fields that can affect the operation of technological networks at the Earth's surface, including power systems, pipelines, phone cables and railway circuits.
D H Boteler, Risto J Pirjola
exaly +3 more sources
AEJ - Alexandria Engineering Journal, 2023 The geoelectric fields induced during geomagnetic disturbances (GMD) may affect the normal operation of technological systems at the Earth’s surface. The non-uniform Earth conductivity structure, especially large lateral conductivity contrasts, can lead ...
Shuming Zhang
exaly +3 more sources
A 100‐year Geoelectric Hazard Analysis for the U.S. High‐Voltage Power Grid
Space Weather, 2020 A once‐per‐century geoelectric hazard map is created for the U.S. high‐voltage power grid. A statistical extrapolation from 31 years of magnetic field measurements is made by identifying 84 geomagnetic storms with the Kp and Dst indices.
Greg M Lucas +2 more
exaly +2 more sources
Geoelectric field response characteristics analysis of floor roadway surrounding rock fracture caused due to coal seam mining [PDF]
Scientific Reports, 2021 The fracture of rocks surrounding the floor roadway during the mining of the working face of a coal mine is a complicated spatiotemporal process due to the superimposed action of multiple stress fields on the surrounding rock mass.
Yuanchao Ou +9 more
doaj +2 more sources
Mapping Geoelectric Field Hazards in Ireland
Space WeatherGeoelectric fields are generated at the Earth's surface and can lead to the induction of hazardous geomagnetically induced currents (GIC) in infrastructure like power grids, railways and pipelines during geomagnetic storms.
J Malone-Leigh +2 more
exaly +2 more sources
Geolectric field measurement, modelling and validation during geomagnetic storms in the UK
Journal of Space Weather and Space Climate, 2021 Significant geoelectric fields are produced by the interaction of rapidly varying magnetic fields with the conductive Earth, particularly during intense geomagnetic activity.
Beggan Ciarán D. +4 more
doaj +1 more source
Geoelectric monitoring at the Boulder magnetic observatory [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2017 Despite its importance to a range of applied and fundamental studies, and obvious parallels to a robust network of magnetic-field observatories, long-term geoelectric field monitoring is rarely performed.
C. C. Blum +5 more
doaj +1 more source
Earth and Space Science, 2021 An analysis is made of Earth‐surface geoelectric fields and voltages on electricity transmission power‐grids induced by a late‐phase E3 nuclear electromagnetic pulse (EMP). A hypothetical scenario is considered of an explosion of several hundred kilotons
Jeffrey J. Love +5 more
doaj +1 more source