Results 71 to 80 of about 2,957 (186)

Frequency Considerations in GIC Applications

open access: yesSpace Weather, 2021
Geomagnetically induced currents (GIC) are a phenomenon well known for its negative effects on the operations of power systems. To efficiently mitigate them requires different types of power system modeling, from GIC to alternating current harmonic ...
L. Trichtchenko
doaj   +1 more source

Robust Directional Analysis of Magnetic Microscopy Images Using Non‐Linear Inversion and Iterative Euler Deconvolution

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract In paleomagnetism, bulk measurements of entire samples have traditionally been used to characterize remanent magnetization. While effective, this approach provides only a general directional estimate and cannot resolve spatial variability or magnetization at the grain scale.
Gelson F. Souza‐Junior   +5 more
wiley   +1 more source

Geomagnetically Induced Currents and Harmonic Distortion: High Time Resolution Case Studies

open access: yesSpace Weather, 2020
High time resolution (1–5 s) magnetometer, geomagnetically induced current (GIC), and mains harmonic distortion data from the Halfway Bush substation in Dunedin, New Zealand, are analyzed.
Mark A. Clilverd   +6 more
doaj   +1 more source

Intense, Long‐Duration Geomagnetically Induced Currents (GICs) Caused by Intense Substorm Clusters

open access: yesSpace Weather, 2022
Geomagnetically induced current (GIC) measurements at the Mäntsälä, Finland (57.9° magnetic latitude) gas pipeline from 1999 through 2019 are analyzed.
Rajkumar Hajra
doaj   +1 more source

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

open access: yes, 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   +1 more
core   +1 more source

Northeastern Greenland Paleomagnetic Records Indicate the Influence of Geomagnetic Flux Lobe Intensity on Virtual Geomagnetic Pole Migration During the Holocene

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract Paleomagnetic and rock magnetic analyses were conducted on sediment cores from the northeastern Greenland Shelf and Young Sound along the western edge of Fram Strait. The paleomagnetic signal in all three sediment cores is characterized by a strong and stable single component magnetization carried by low coercivity ferrimagnetic single domain ...
Juliette Girard   +7 more
wiley   +1 more source

Space Weather and Power Grids - A Vulnerability Assessment [PDF]

open access: yes, 2014
Strong geomagnetic disturbances resulting from solar activity can have a major impact on ground-based infrastructures, such as power grids, pipelines and railway systems.
KRAUSMANN Elisabeth, PICCINELLI ROBERTA
core   +1 more source

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both   +2 more
wiley   +1 more source

Effects of Lateral Conductivity Variations on Geomagnetically Induced Currents: H-Polarization

open access: yesIEEE 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   +3 more
doaj   +1 more source

What happens when the geomagnetic field reverses?

open access: yes, 2012
During geomagnetic field reversals the radiation belt high-energy proton populations become depleted. Their energy spectra become softer, with the trapped particles of highest energies being lost first, and eventually recovering after a field reversal ...
Akasofu   +42 more
core   +1 more source

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