Results 51 to 60 of about 3,583,049 (117)
Proximity Effects of Lateral Conductivity Variations on Geomagnetically Induced Electric Fields
IEEE Access, 2019 During a magnetic storm, the induced geoelectric field drives geomagnetically induced currents (GIC) in power transmission networks, railway systems, and pipelines, negatively affecting these systems.
Chunming Liu +3 more
doaj +1 more source
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.Abstract Accurate forecasting of geomagnetic perturbations is essential for assessing space weather risk of geomagnetic activities. Thanks to decades of magnetometer observations from world‐wide distributed networks and upstream solar wind observations at L1, data‐driven modeling of global geomagnetic perturbations has become increasingly feasible ...
Hongfan Chen +4 more
wiley +1 more source
Influence of spatial variations of the geoelectric field on geomagnetically induced currents
Journal of Space Weather and Space Climate, 2017 The geoelectric field driving geomagnetically induced currents (GIC) has complex spatial variations. It follows that different patterns of the field vectors in a given area having the same regional mean can produce very different GIC.
Viljanen Ari, Pirjola Risto
doaj +1 more source
Space Weather, Volume 24, Issue 8, August 2026.Abstract This paper quantitatively characterizes dB/dt peaks at four African equatorial‐ and low‐latitude stations, along latitudinal and local‐time gradients across different phases of selected geomagnetic storms. We investigate dB/dt response for intense geomagnetic storms, Dst ≤ −100 nT observed during solar cycle 24 over four stations in the ...
Wuraola E. Oyegunle +6 more
wiley +1 more source
Geomagnetically Induced Currents (GIC) in power networks as a source of electromagnetic sounding data [PDF]
, 2005 Geomagnetically Induced Currents (GIC), which can flow in technological systems such as power transmission grids, are a consequence of the geoelectric field induced at the surface of the Earth during geomagnetic storms.
Thomson, Alan +3 more
core +4 more sources
Methodology for simulation of geomagnetically induced currents in power systems
Journal of Space Weather and Space Climate, 2014 To assess the geomagnetic hazard to power systems it is useful to be able to simulate the geomagnetically induced currents (GIC) that are produced during major geomagnetic disturbances.
Boteler David
doaj +1 more source
Forecasting Local Geomagnetic Disturbances Using Machine Learning: A Multi‐Station Approach
Space Weather, Volume 24, Issue 7, July 2026.Abstract Geomagnetic indices such as SYM‐H capture global disturbances but fail to resolve regional impacts critical for infrastructure resilience. We present a machine learning model to forecast the Local Disturbance Index (LDi), a validated regional geomagnetic index.
Armando Collado‐Villaverde +3 more
wiley +1 more source
Geomagnetically induced currents in a Norwegian transformer station [PDF]
, 2022 This report considers measurements of geomagnetically induced current (GIC) and comparison to recorded variations in the geomagnetic field (dB/dt). The GIC-sensors were installed in the neutral point of a 420 kV transformer located in Mid-Norway in 2019.
Solheim, Kristian Thinn +2 more
core
Space Weather, Volume 24, Issue 7, July 2026.Abstract During space weather events, geomagnetic field variations produce geoelectric fields (GEFs) that drive geomagnetically induced currents (GIC), which may affect operation of power systems, pipelines, railway signaling, and submarine cables. It is often assumed that GEFs and GICs are proportional to the rate of change of the magnetic field, ∂B ...
S. Chakraborty, D. H. Boteler
wiley +1 more source
Effects of geomagnetically induced currents on power transformers and reactors [PDF]
, 2003 Bibliography: leaves 106 ...
Amuanyena, L A T
core +1 more source