Results 31 to 40 of about 3,583,049 (117)
An Approach to Diagnostics of Geomagnetically Induced Currents Based on Ground Magnetometers Data
Applied Sciences, 2022 The geomagnetically induced currents (GICs) in extended grounded technological systems are driven by telluric electric fields induced by the rapid changes of the geomagnetic field.
Andrei Vorobev +4 more
doaj +1 more source
The electric field in northern England and southern Scotland: implications for geomagnetically induced currents. [PDF]
, 2006 Magnetotelluric (MT) data, in the form of MT tensors, are used to estimate directly the size and spatial distribution of the electric field in northern England and southern Scotland with the aim of predicting the flow of geomagnetically induced currents ...
McKay, A. J. +3 more
core +1 more source
Effects of Lateral Conductivity Variations on Geomagnetically Induced Currents: H-Polarization
IEEE Access, 2019 H-polarization, along with E-polarization, indicates the lateral variations of the Earth conductivity, which influence the induced electric field distribution.
Chunming Liu +3 more
doaj +1 more source
Fast computation of the geoelectric field using the method of elementary current systems and planar Earth models [PDF]
Annales Geophysicae, 2004 The method of spherical elementary current systems provides an accurate modelling of the horizontal component of the geomagnetic variation field. The interpolated magnetic field is used as input to calculate the horizontal geoelectric field.
A. Viljanen +6 more
doaj +1 more source
Space Weather, Volume 24, Issue 9, September 2026.Abstract We developed a multi‐module convolutional neural network combined with a multi‐head attention mechanism (MM‐CNN‐MHA) to forecast geomagnetically induced currents (GICs) at the Huangmeishan (HMS) 220‐kV substation in Fujian Province, China.
Xuejian Zhang +8 more
wiley +1 more source
Major Space Weather Risks Identified via Coupled Physics‐Engineering‐Economic Modeling
AGU Advances, Volume 7, Issue 6, September 2026.Abstract Space weather poses an important but under‐quantified threat to society. While severe geomagnetic storms are recognized as potential global catastrophes, their socio‐economic impacts remain poorly quantified. We present a novel physics‐engineering‐economic framework that links geophysical drivers to power grid geoelectric fields, transformer ...
Edward J. Oughton +7 more
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.Abstract The neutral wind dynamo generates ionospheric currents that can significantly affect high‐latitude electrodynamics during geomagnetic storms, yet its role in global magnetosphere‐ionosphere coupling is often underrepresented. We quantify the impact of wind‐driven currents on geomagnetic disturbances (GMDs) and magnetospheric dynamics during ...
Yu Hong +4 more
wiley +1 more source
UHV AC/DC power grid geomagnetically induced currents harmonic characteristics analysis
International Journal of Electrical Power & Energy SystemsThe power grid’s geomagnetically induced currents (GIC) during geomagnetic storms, are associated with a broad and abrupt harmonic impact, with the potential for grid paralysis and extensive power outages in severe scenarios.
Peng Li +5 more
doaj +1 more source
A Mitigation Method Based on the Principle of GIC-Even Distribution in Whole Power Grids
IEEE Access, 2020 The geomagnetically induced currents (GIC) caused by geomagnetic storms can inflict the anomalous operation of power systems, damaging electrical equipment, or even resulting in a large-area blackout of power systems.
Shu-Ming Zhang, Lian-Guang Liu
doaj +1 more source
Space Weather Mitigation Decisions by Critical Infrastructure Operators During Solar Cycle 25
Space Weather, Volume 24, Issue 9, September 2026.Abstract The “Gannon Storm” in May 2024 was the largest space weather event experienced in 20 years, generating auroras at latitudes as low as 35°, visible in Florida and Mexico. Such events pose significant operational challenges for critical infrastructure operators, particularly those managing electricity transmission networks, satellite ...
C. M. LaNeve +5 more
wiley +1 more source