Results 61 to 70 of about 231 (130)

A Novel Approach for Evaluating GIC Impacts in the Swedish Power Grid

Space Weather
The dynamic behavior of the Sun and its interaction with the magnetosphere and ionosphere can cause rapid variations in the geomagnetic field at ground level, geomagnetically induced currents (GICs) flowing through long grounded conductors.
L. Rosenqvist, A. Johlander, S. Molenkamp, A. P. Dimmock, J. Setréus, V. Lanabere   +5 more
doaj   +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, Xuan Wang, Shuming Zhang, Chunze Xie   +3 more
doaj   +1 more source

Mid‐Latitude Geoelectric Field Response in North China During the May 2024 Superstorm: Effects of Geological Heterogeneity

Space Weather
Geoelectric field disturbances during geomagnetic storms pose growing risks to mid‐latitude power systems, yet direct observations remain limited.
Fangyuan Ma, Hui Wang, Yonglin Tan, Yingdu Huang, Hongwei Xia, Darcy Cordell   +5 more
doaj   +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

Leveraging Legacy Broadband Magnetotelluric Data for Geoelectric Field Hazard Assessment in Southern Italy

Space Weather
Geomagnetically induced currents (GICs) are a significant space weather hazard. Their accurate assessment requires estimating the geoelectric field, which depends on the Earth's subsurface electrical conductivity.
P. De Michelis, G. Pignatiello, E. Consolini, M. De Girolamo, A. Siniscalchi   +4 more
doaj   +1 more source

Electrogravitational model development of the upper part of the litosphere along Serov profile (Northern Urals)

Литосфера, 2015
Additional regional electromagnetic field studies have been carried out in the northern section of the Urals. As a result of processing and interpretation of experimental materials on the basis of computational modeling of electromagnetic fields the ...
O. V. Surina, A. G. Dyakonova
doaj   +2 more sources

Comparison of the modelled geoelectric fields of the Carrington and Halloween storms

Journal of Space Weather and Space Climate
An extreme geomagnetic storm comparable to the Carrington event in 1859 could have a significant impact on modern infrastructure, such as power grids. A previously published simulation by Blake et al.
Viljanen Ari, Marshalko Elena, Juusola Liisa, Laitinen Tiera, Kauristie Kirsti   +4 more
doaj   +1 more source

Identification of Underground Artificial Cavities Based on the Bayesian Convolutional Neural Network. [PDF]

Sensors (Basel), 2023
Xia J, Peng R, Li Z, Li J, He Y, Li G.
europepmc   +1 more source

Geoelectric characterisation of the junction of seismically active Delhi Hardwar Ridge and Delhi Sargodha Ridge. [PDF]

Sci Rep, 2023
Rawat G, Mohan K, Dhamodharan S, Dadhich H, Chingtham P, Sain K, Mishra OP.   +6 more
europepmc   +1 more source

The Influence of 3‐D Earth Conductivity, Geoelectric Field Polarization, and Power Grid Topology on GIC Risk

Space Weather
Geomagnetically induced currents (GICs) are naturally occurring electrical currents that flow through the Earth and long conductive infrastructure, such as power lines, during geomagnetic storms.
Hannah G. Parry, Darcy R. Cordell, Martyn J. Unsworth, Ryan MacMullin, Ian R. Mann   +4 more
doaj   +1 more source