Results 51 to 60 of about 925 (188)

Localized Threats: How Ground Conductivity Shapes the Geoelectric Response

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Geomagnetic storms can induce strong geoelectric fields in the ground. These fields drive geomagnetically induced currents in technological conductor systems, such as power grids. In this study, we analyze 4‐hr periods of two such major geomagnetic storms: the Halloween storm (29–31 October 2003) and the 7–8 September 2017 storm.
M. Kellinsalmi, E. Marshalko, L. Juusola, A. Viljanen   +3 more
wiley   +1 more source

Comparison of Geoelectric Fields Computed by the Complex Image, Magnetotelluric, and Finite‐Difference Time‐Domain Methods

Space Weather, Volume 24, Issue 3, March 2026.
Abstract It is important to be able to accurately predict geoelectric field behavior so that potential space weather hazards to large grounded infrastructure, such as electric power grids, smart grids, oil and gas pipelines, and railway systems, can be better understood.
Prashanna S. Paneru, Darcy Cordell, Jamesina J. Simpson, Mark B. Moldwin   +3 more
wiley   +1 more source

Simulating Geomagnetically Induced Currents (GICs) in the Irish Power Network

, 2015
Presentation given at ESPM 2014 in Trinity College Dublin.
Blake, Sean, Gallagher, Peter, McCauley, Joe, Jones, Alan, Hogg, Colin, Beggan, Ciaran, Thomson, Alan, Kelly, Gemma, Walsh, Sarah   +8 more
openaire   +1 more source

Assessment of Extreme Storm and Cumulative Risks to the New Zealand Gas Pipeline Network From Space Weather

Space Weather, Volume 24, Issue 3, March 2026.
Abstract Space weather results in risks to gas pipelines in the form of both hazardous levels of pipe‐to‐soil potentials during extreme geomagnetic storms, and accumulated corrosion through less severe, but continuous geomagnetic activity. Here we report on calculations of pipe‐to‐soil potentials during a simulated extreme storm, using both direct ...
M. Ingham, T. Divett, M. Sigley, C. J. Rodger   +3 more
wiley   +1 more source

Solar‐Wind Triggering of Substorm Onset During the May 2024 Superstorm: Coordinated Global Observations and Simulations

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Substorms are often described by a loading‐unloading cycle, where onset follows gradual accumulation of solar wind magnetic flux in the magnetosphere. Yet observations indicate that intense substorms can also be directly driven, though the underlying mechanism remains unresolved.
Yong Ren, Minghui Zhu, Lei Dai, Walter Gonzalez, Shan Wang, Chi Wang, C. Philippe Escoubet, Jiaojiao Zhang, Qiugang Zong   +8 more
wiley   +1 more source

The Development of Models for Assessment of the Geomagnetically Induced Currents Impact on Electric Power Grids during Geomagnetic Storms

Advances in Electrical and Computer Engineering, 2015
A model and an algorithm for the calculation of the functioning of an electric power grid of arbitrary configuration and complexity during geomagnetic storms were developed.
VAKHNINA, V. V., KUVSHINOV, A. A., SHAPOVALOV, V. A., CHERNENKO, A. N., KRETOV, D. A.   +4 more
doaj   +1 more source

Geomagnetism : review 2010 [PDF]

, 2011
The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields, across the world and over time. Our data and expertise help to develop scientific understanding of the evolution of the solid Earth and ...

core  

Characterisation of grain orientated electrical steels under high DC biased conditions [PDF]

, 2016
Power transformers are designed to operate under pure AC excitation, however they may be subjected to superimposed DC voltages and consequential offset currents, for example from geomagnetically induced currents, GICs, arising from solar activity.
Anderson, Philip Ian, Harrison, Christopher   +1 more
core   +1 more source

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

Validation of geomagnetically induced current modelling code [PDF]

, 2017
A paper by Horton et al. (2012) details a test grid containing 8 substations with 15 transformers connected by 15 lines. The paper gives detailed information about location, resistances and connections including features such as capacitors, delta and ...
Beggan, C.D., Richardson, G.S.
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