Results 71 to 80 of about 3,583,049 (117)

Geomagnetically Induced Currents, Transformer Harmonics, and Reactive Power Impacts: Observed Response of a Single‐Phase Transformer in New Zealand

Space Weather
Geomagnetic storms represent a space weather hazard to power transmission networks due to the effects of induced geo‐electric fields within the conducting surface of the Earth.
Xinhu Feng, C. J. Rodger, M. A. Clilverd, D. H. Mac Manus, Victor Lo, M. Dalzell, A. Renton, A. Lapthorn, J. B. Brundell, Tanja Petersen   +9 more
doaj   +1 more source

Influence of Geomagnetically Induced Currents on Power Line Harmonic Radiation Observed at the Kannuslehto Ground‐Based Station

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract This study investigates the properties of power line harmonic radiation (PLHR), a type of electromagnetic emission generated by electric power networks. In particular, we analyze how the PLHR intensity varies in relation to geomagnetically induced currents (GICs), quasi‐DC currents driven by rapid changes in the geomagnetic field during space ...
K. Drastichová, F. Němec, J. Manninen, T. Raita   +3 more
wiley   +1 more source

Validating SCUBAS Predictions of Geomagnetically Induced Voltage in Submarine Cables Using Legacy Superstorm Observations

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Modern submarine communication cables, though fiber‐optic in nature, remain vulnerable to space weather hazards due to their internal conductive cables used for powering repeaters. During geomagnetic storms, variations in the geomagnetic field induce geoelectric fields that drive geomagnetically induced voltages along these cables.
S. Chakraborty, M. D. Hartinger, X. Shi, D. H. Boteler, E. Lawrence, C. Boteler, J. B. H. Baker, M. Macalester   +7 more
wiley   +1 more source

Terrestrial Space Weather Protection Through Human‐Produced Mass‐Loading

Space Weather, Volume 24, Issue 6, June 2026.
Abstract While humans become more reliant on Earth's space environment, the potential for significant harm from severe space weather continues to grow. As structures from the sun reach Earth's magnetosphere and space environment, they deposit energy that fuels geomagnetic storms.
B. M. Walsh, D. T. Welling, Z. Huang
wiley   +1 more source

Modified GIC Estimation Using 3‐D Earth Conductivity

Space Weather, 2020
Geomagnetically induced currents (GICs) are quasi‐direct current (DC) electric currents that flow in technological conductors during geomagnetic storms. Extreme GICs are hazardous to man‐made infrastructure. GICs enter and exit the technological systems,
Anna Kelbert, Greg M. Lucas
doaj   +1 more source

The Geomagnetically Induced Current Extremal Values Estimation Based on Baygazan Magnetical Station Data

Russian Journal of Earth Sciences
Based on the Baygazan magnetic station data, geomagnetically induced currents (GIC) in the 500 kV Sayano-Shushenskaya HPP (SSHPP) – Novokuznetsk substation power line were simulated during very strong and extreme magnetic storms (planetary geomagnetic ...
Gvozdarev Aleksey, Uchaykin Evgeniy
doaj   +1 more source

Critical Risk Indicators (CRIs) for the electric power grid: a survey and discussion of interconnected effects. [PDF]

Environ Syst Decis, 2021
Che-Castaldo JP, Cousin R, Daryanto S, Deng G, Feng ME, Gupta RK, Hong D, McGranaghan RM, Owolabi OO, Qu T, Ren W, Schafer TLJ, Sharma A, Shen C, Sherman MG, Sunter DA, Tao B, Wang L, Matteson DS.   +18 more
europepmc   +1 more source

Quantitative influence of coast effect on geomagnetically induced currents in power grids: a case study

Journal of Space Weather and Space Climate, 2018
In recent years, several magnetic storms have disrupted the normal operation of power grids in the mid-low latitudes. Data obtained from the monitoring of geomagnetically induced currents (GIC) indicate that GIC tend to be elevated at nodes near the ...
Liu Chunming, Wang Xuan, Wang Hongmei, Zhao Huilun   +3 more
doaj   +1 more source

Analysis of geomagnetically induced currents at a low-latitude region over the solar cycles 23 and 24: comparison between measurements and calculations

Journal of Space Weather and Space Climate, 2015
Geomagnetically Induced Currents (GIC) are a space weather effect, which affects ground-based technological structures at all latitudes on the Earth’s surface.
Barbosa Cleiton, Alves Livia, Caraballo Ramon, Hartmann Gelvam A., Papa Andres R.R., Pirjola Risto J.   +5 more
doaj   +1 more source

Modeling GIC in the Southern South Island of Aotearoa New Zealand Using Magnetotelluric Data

Space Weather
Magnetotelluric (MT) impedances from 62 sites in southern South Island of Aotearoa New Zealand have been used to model geomagnetically induced currents (GIC) in four transformers during two solar storms.
K. M. Pratscher, M. Ingham, D. H. Mac Manus, M. Kruglyakov, W. Heise, C. J. Rodger, T. Divett, E. Bertrand, M. Dalzell, J. Brundell   +9 more
doaj   +1 more source