Magnetic storms on Earth begin when the magnetosphere of the planet "hit" the Sun ejected plasmoids. Charged particles cause geomagnetic disturbances. If they reach a great power, it can lead to failures in electronic equipment, disruption to radio and electrical networks.
"In 2013, the projected 30-40 geomagnetic storms, of which 5.10 is large and very large," — said in a forecast of the Centre "Antistikhia" for this year.
According to him, the likelihood of higher category storms (extreme) projected to be within 25%. Average level of Ap-index of geomagnetic activity is expected to be 10 + — 4.
"In 2012, registered 30 geomagnetic storms, five of which are large and one very large," — the document says.
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