April 2000 geomagnetic storm: ionospheric drivers of large geomagnetically induced currents [PDF]
Annales Geophysicae, 2003 Geomagnetically induced currents (GIC) flowing in technological systems on the ground are a direct manifestation of space weather. Due to the proximity of very dynamic ionospheric current systems, GIC are of special interest at high latitudes ...
A. Pulkkinen +3 more
doaj +7 more sources
Geomagnetically induced currents in Europe [PDF]
Journal 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 +2 more sources
Continental scale modelling of geomagnetically induced currents
Journal of Space Weather and Space Climate, 2012 The EURISGIC project (European Risk from Geomagnetically Induced Currents) aims at deriving statistics of geomagnetically induced currents (GIC) in the European high-voltage power grids.
Sakharov Yaroslav +6 more
doaj +2 more sources
HV Transformer Protection and Stabilization under Geomagnetically Induced Currents
Energies, 2020 This paper presents the results of research related to the issues arising from DC excitation of power transformers due to geomagnetically induced currents (GIC). First, the GIC phenomena and their influence on power system operation are discussed.
Daniel Bejmert +3 more
doaj +2 more sources
Characteristics of variations in the ground magnetic field during substorms at mid latitudes [PDF]
, 2009 Substorms are known to cause geomagnetically induced currents (GIC) in power transmission lines through variations in the ground magnetic field. An improved knowledge and understanding of how the different phases of substorms affect the ground magnetic ...
Wild, J.A. +9 more
core +7 more sources
High-latitude geomagnetically induced current events observed on very low frequency radio wave receiver systems [PDF]
, 2010 Noise burst events observed at Sodankylä, Finland, in the frequency range 20–25 kHz during January–April 2005 last up to 4 s, occur more often at midnight, are associated with high geomagnetic activity, and exhibit a quasi-constant amplitude perturbation
Dietrich, Sarah +7 more
core +5 more sources
Present day challenges in understanding the geomagnetic hazard to national power grids [PDF]
, 2010 Power grids and pipeline networks at all latitudes are known to be at risk from the natural hazard of geomagnetically induced cur- rents. At a recent workshop in South Africa, UK and South African scientists and engineers discussed the current ...
Wild, J.A. +8 more
core +4 more sources
, 2010 Space weather stands out among natural hazards as one of the great unknowns, largely for its potential effect on modern technology. Alan Thomson and Jim Wild discuss the challenges in understanding the geomagnetic hazard to national power ...
Thomson, Alan, Wild, James
core +6 more sources
The electric field in northern England and southern Scotland: implications for geomagnetically induced currents. [PDF]
, 2006 Magnetotelluric (MT) data, in the form of MT tensors, are used to estimate directly the size and spatial distribution of the electric field in northern England and southern Scotland with the aim of predicting the flow of geomagnetically induced currents ...
McKay, A. J. +3 more
core +1 more source
Influence of spatial variations of the geoelectric field on geomagnetically induced currents
Journal 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