bn:03347469n
Noun Concept
EL
ξαφνική ιονοσφαιρικές διαταραχές
EN
A sudden ionospheric disturbance is any one of several ionospheric perturbations, resulting from abnormally high ionization/plasma density in the D region of the ionosphere and caused by a solar flare and/or solar particle event. Wikipedia
Relations
Sources