Geomagnetically Induced Currents: an introduction
1 : Laboratoire d\'études spatiales et dínstrumentation en astrophysique
(LESIA)
-
Site web
* : Auteur correspondant
Université Pierre et Marie Curie - Paris 6, Institut national des sciences de l\'Univers, Observatoire de Paris, Université Paris Diderot - Paris 7, Centre National de la Recherche Scientifique : UMR8109
5, place Jules Janssen 92190 MEUDON -
France
The single most dangerous threat from space weather to human infrastructure are so called “Geomagnetically Induced Currents”
short GICs. They are caused by fast changes in the magnetic disturbance fields caused by sudden set-up or re-organisation
of large magnetospheric or ionospheric current systems. According to Faraday's Law a fast change in the magnetic field
induces an electric field, which in turn can induce currents in any conductor, which is oriented in the direction of the electric
field.
This introductory talk aims to present the basic physics at the origin of these currents and the industrial infrastructures that can be damaged by such currents
| Type : | : | oral |
| Thématiques | : | Météorologie de l'espace |
| PDF version | : |  PDF version |
