Results 31 to 40 of about 2,957 (186)

Geomagnetically Induced Currents: Frequency Spectra and Threats to Voltage Stability

open access: yesIEEE Access, 2022
Geomagnetically induced currents are induced after a complex interaction between the sun and earth’s magnetic field. GICs may cripple power systems leading to voltage collapse and a drop in power quality.
Pitambar Jankee   +4 more
doaj   +1 more source

Nuclear Magnetohydrodynamic EMP, Solar Storms, and Substorms

open access: yes, 2003
In addition to a fast electromagnetic pulse (EMP), a high altitude nuclear burst produces a relatively slow magnetohydrodynarnic EMP (MHD EMP), whose effects are like those from solar storm geomagnetically induced currents (SS GIC).
Cokkinides, George J.   +3 more
core   +1 more source

First E region observations of mesoscale neutral wind interaction with auroral arcs [PDF]

open access: yes, 2010
We report the first observations of E region neutral wind fields and their interaction with auroral arcs at mesoscale spatial resolution during geomagnetically quiet conditions at Mawson, Antarctica.
Aikio   +80 more
core   +1 more source

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
wiley  

+1 more source

Modelling of geomagnetically induced currents in the Czech transmission grid

open access: yesEarth, Planets and Space, 2021
We investigate the maximum expected magnitudes of the geomagnetically induced currents (GICs) in the Czech transmission power network. We compute a model utilising the Lehtinen–Pirjola method, considering the plane-wave model of the geoelectric field ...
Michal Švanda   +2 more
doaj   +1 more source

A 3-Phase Current Transducer based on microfluxgate sensors [PDF]

open access: yes, 2019
Novel 3-phase DC/AC current transducer for 3-phase current lines is based on 8 integrated fluxgate sensors. Using full information from each sensor rather than gradiometric pairs, we suppress crosstalk between individual phases and external magnetic ...
Chirtsov A., Grim V., Ripka P.
core   +1 more source

Spatial scale of geomagnetic Pc5/Pi3 pulsations as a factor of their efficiency in generation of geomagnetically induced currents

open access: yesEarth, Planets and Space, 2021
Geomagnetically induced currents (GICs) in a quasi-meridional power transmission line on the Kola Peninsula are analyzed during the intervals of Pc5/Pi3 (frequency range from 1.5 to 5 mHz) pulsations recorded at the IMAGE magnetometer network.
Nadezda V Yagova   +3 more
doaj   +1 more source

Relation between substorm characteristics and rapid temporal variations of the ground magnetic field [PDF]

open access: yes, 2006
Auroral substorms are one of the major causes of large geomagnetically induced currents (GIC) in technological systems. This study deals with different phases of the auroral substorm concerning their severity from the GIC viewpoint. Our database consists
A. Pulkkinen   +2 more
core   +2 more sources

Geomagnetically Induced Currents in the Irish Power Network during Geomagnetic Storms

open access: yes, 2016
Geomagnetically induced currents (GICs) are a well-known terrestrial space weather hazard. They occur in power transmission networks and are known to have adverse effects in both high and mid-latitude countries.
Alan G. Jones (1355523)   +9 more
core   +2 more sources

Methodology for simulation of geomagnetically induced currents in power systems

open access: yesJournal 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

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