orage élémentaire
- Domaine
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- géologie géophysique
Terme :
- orage élémentaire n. m.
Traductions
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anglais
Auteur : Taillefer, Yves,Définition
Relatively small activities of the Sun, resulting in the emission of high-energy electrons, can cause the equilibrium condition of the geomagnetic field and the plasma sphere to become distorted.
Note :
Earth synchronous satellites may thus find themselves in a local area of magnetic field distortion such that the electron stream can impinge on the spacecraft. This magnetic substorm (as contrasted by a major storm due to a major solar flare activity) can cause charging of spacecraft surfaces to large negative potentials relative to the surrounding plasma.
Terme :
- substorm