Results 41 to 50 of about 3,583,049 (117)

Measurement of the geomagnetically induced currents (GIC) by the solar activity [PDF]

, 2019
Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2019, Tutor: Alejandro Marcuello PascualThe aim of this study is to measure the currents geomagnetically induced by the solar activity in the high-voltage powerlines ...
Estrany Garcia, Joan Manel
core   +6 more sources

Climatological Statistics of Extreme Geomagnetic Fluctuations With Periods From 1 s to 60 min

Space Weather, 2021
Using a global database of 125 magnetometers covering several decades, we present occurrence statistics for fluctuations of the horizontal geomagnetic field (dBh/dt) exceeding the 99.97th percentile (P99.97) for both ramp changes (Rn) and the root‐mean ...
N. C. Rogers, J. A. Wild, E. F. Eastoe, J. Hübert   +3 more
doaj   +1 more source

Systematic Component‐Level Characterization of Electricity Transmission Infrastructure for Space Weather Risk Assessment

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Space weather risk assessment is constrained by the lack of available asset information needed to model geomagnetically induced currents (GICs) in electricity transmission infrastructure. We propose a systematic method that enables risk analysts to collect their own open‐source substation data.
Dennies K. Bor, Edward J. Oughton, Evan A. Peters, Noah Rivera, C. Trevor Gaunt, Robert S. Weigel, Michael Wiltberger   +6 more
wiley   +1 more source

Regional estimation of geomagnetically induced currents based on the local magnetic or electric field

Journal of Space Weather and Space Climate, 2015
Previous studies have demonstrated a close relationship between the time derivative of the horizontal geomagnetic field vector (dH/dt) and geomagnetically induced currents (GIC) at a nearby location in a power grid.
Viljanen Ari, Wintoft Peter, Wik Magnus
doaj   +1 more source

Assessment of the geomagnetically induced currents impact on the power transformers cores of the Altai Republic 110 kV power grid [PDF]

E3S Web of Conferences
Based on the Baigazan magnetic station data located in Altai, geomagnetically induced currents (GIC) in primary windings of transformers in the southern part of the Altai Republic power system were calculated during a strong magnetic storm on April 24 ...
Uchaikin Evgeniy, Gvozdarev Alexey, Kudryavtsev Nikolay   +2 more
doaj   +1 more source

Did Space Weather Delay the 10:05 p.m. Train Departure From Exeter on 18 October 1841?

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Although the Carrington Event of 1859 is typically cited as the first extreme space weather event of the scientific era, it is not the earliest example of modern human technology being impacted by geomagnetic activity. The literature includes reliable accounts of disturbances to telegraph equipment during geomagnetic storms dating to the late ...
James A. Wild, Ciaran D. Beggan, David H. Boteler, William B. Cade III, Brett A. Carter, Michael Hapgood   +5 more
wiley   +1 more source

Influence of Tectonic and Geological Structure on GIC in Southern South Island, New Zealand

Space Weather, 2023
As part of a 5‐year project to assess the risk posed by geomagnetically induced currents (GIC) to the New Zealand electrical transmission network, long‐period magnetotelluric (MT) measurements have been made at 62 sites in southern South Island of New ...
M. Ingham, K. Pratscher, W. Heise, E. Bertrand, M. Kruglyakov, C. J. Rodger   +5 more
doaj   +1 more source

A Multi‐Event Comparison of dB/dt Resulting From Omega Band Aurora

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Omega bands are an auroral form occurring in the dawn sector which cause magnetic perturbations on the ground as they drift eastwards. If these changes in the magnetic field are large, omega bands can become a space weather hazard as the corresponding geomagnetically induced currents have the potential to cause damage to ground based ...
R. M. Hodnett, S. E. Milan, S. K. Vines, J. W. Gjerloev, L. J. Paxton   +4 more
wiley   +1 more source

High-latitude geomagnetically induced current events observed on very low frequency radio wave receiver systems [PDF]

, 2010
Noise burst events observed at Sodankylä, Finland, in the frequency range 20–25 kHz during January–April 2005 last up to 4 s, occur more often at midnight, are associated with high geomagnetic activity, and exhibit a quasi-constant amplitude perturbation
Dietrich, Sarah, Raita, Tero, Clarke, Ellen, Thomson, Alan W.P., Rodger, Craig J., Clilverd, Mark A., Ulich, Thomas, Kavanagh, Andrew J.   +7 more
core   +1 more source

Long-period geomagnetic pulsations as an element of the space weather influence on technologocal systems

Solar-Terrestrial Physics
We analyze variations in geomagnetically induced currents (GIC) and pulsations of the geomagnetic field latitudinal By component in the frequency range 1–20 mHz.
Yagova N. V., Sakharov Y. A., Pilipenko V. A., Selivanov V. N.   +3 more
doaj   +1 more source