magnetic storm


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magnetic storm

a sudden severe disturbance of the earth's magnetic field, caused by emission of charged particles from the sun

magnetic storm

[mag′ned·ik ′stȯrm]
(geophysics)
A worldwide disturbance of the earth's magnetic field; frequently characterized by a sudden onset, in which the magnetic field undergoes marked changes in the course of an hour or less, followed by a very gradual return to normalcy, which may take several days. Also known as geomagnetic storm.
References in periodicals archive ?
As a model, the research focuses on the Anatolian peninsula, presenting 41 years of historical data on magnetic storms and earthquakes collated from national and international resources.
The disturbance magnetic field may amount to 1 percent or more of the Earth's field, thus it is called a magnetic storm.
The SEC makes it possible for power stations, satellite operators, airlines, and dozens of other affected businesses to prepare for magnetic storms.
During the periods of sharp GMF outbursts- called magnetic storms, the polynuclear cells, large cells with large nuclei and giant cells with giant nuclei appear among the regular meristematic cells.
The music--which imitates the solar wind, magnetic storms, and melancholy earth sounds--came from Norwegian composer Oystein Sevag and was played by that country's Global House Band 2001.
The currents are produced when shocks resulting from sudden and severe magnetic storms subject portions of the Earth's surface to fluctuations in the planet's normally stable magnetic field.
The aurora is usually visible only in more northern parts of the UK but on Thursday, the lights could be seen as far south as Essex and Gloucestershire as the result of a strong magnetic storm.
For those who wish to build their own magnetic storm detector, there are two popular designs--the variometer and the fluxgate --which are sensitive enough to detect storm-induced changes in the Earth's magnetic field, and technologically within reach of the amateur observer.
AIRLINES and energy suppliers are on alert after an explosion on the surface of the Sun led to an enormous magnetic storm which has the power to disrupt power lines, satellite navigation systems and flight paths.
CMEs and flares can occur independently of each other, but both are generally observed at the start of a space weather event that leads to a large magnetic storm at Earth.
The Canadian city of Quebec was blacked out in March 1989 by a power surge caused by a magnetic storm.
At Hexham, Magnetic Storm, from the Chris Grant stable, looks interesting in the LCL Pils Novices' Handicap Hurdle (2.45).