Results 11 to 20 of about 2,957 (186)

GEOMAGNETICINDUCED CURRENTSIN ELECTRIC POWER SYSTEMS [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2013
On the example of the local powergrid of Kamchatka shows the relationship between the magnitude of industrial current harmonics and variations of Earth’s magnetic field.
A.S. Serovetnikov, V. P. Sivokon’
doaj   +1 more source

Geomagnetically induced currents in Europe

open access: yesJournal of Space Weather and Space Climate, 2014
Statistics of geomagnetically induced currents (GIC) in the European high-voltage power grids based on 1-min geomagnetic recordings in 1996–2008 and on 1-D models of the ground conductivity have been derived in the EURISGIC project (European Risk from ...
Viljanen Ari   +4 more
doaj   +1 more source

Front Matter

open access: yesGeophysical Monograph Series, Page i-xiv., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
wiley  

+1 more source

Influence of spatial variations of the geoelectric field on geomagnetically induced currents

open access: yesJournal of Space Weather and Space Climate, 2017
The geoelectric field driving geomagnetically induced currents (GIC) has complex spatial variations. It follows that different patterns of the field vectors in a given area having the same regional mean can produce very different GIC.
Viljanen Ari, Pirjola Risto
doaj   +1 more source

Geomagnetically induced currents in Norway: the northernmost high-voltage power grid in the world

open access: yesJournal of Space Weather and Space Climate, 2014
We have derived comprehensive statistics of geomagnetic activity for assessing the occurrence of geomagnetically induced currents (GIC) in the Norwegian high-voltage power grid.
Myllys Minna   +3 more
doaj   +1 more source

Fast computation of the geoelectric field using the method of elementary current systems and planar Earth models [PDF]

open access: yes, 2004
International audienceThe method of spherical elementary current systems provides an accurate modelling of the horizontal component of the geomagnetic variation field.
A. Pulkkinen   +5 more
core   +3 more sources

Regional estimation of geomagnetically induced currents based on the local magnetic or electric field

open access: yesJournal of Space Weather and Space Climate, 2015
Previous studies have demonstrated a close relationship between the time derivative of the horizontal geomagnetic field vector (dH/dt) and geomagnetically induced currents (GIC) at a nearby location in a power grid.
Viljanen Ari, Wintoft Peter, Wik Magnus
doaj   +1 more source

Influences of various magnetospheric and ionospheric current systems on geomagnetically induced currents around the world [PDF]

open access: yes, 2017
Ground-based observations of geomagnetic field (B field) are usually a superposition of signatures from different source current systems in the magnetosphere and ionosphere.
Amm   +65 more
core   +1 more source

Analysis of Large Geomagnetically Induced Currents During the 7–8 September 2017 Storm: Geoelectric Field Mapping

open access: yesSpace Weather, 2023
High temporal and high spatial resolution geoelectric field models of two Mäntsälä, Finnish pipeline geomagnetically induced current (GIC) intervals that occurred within the 7–8 September 2017 geomagnetic storm have been made.
Anna Wawrzaszek   +4 more
doaj   +1 more source

Improving the modeling of geomagnetically induced currents in Spain [PDF]

open access: yes, 2018
Vulnerability assessments of the risk posed by geomagnetically induced currents (GICs) to power transmission grids benefit from accurate knowledge of the geomagnetic field variations at each node of the grid, the Earth's geoelectrical structures beneath ...
Campanyà, Joan   +5 more
core   +1 more source

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