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 ?
5-5 nT and at the Equator) at the Equator Magnetosphere Magnetic Storms 100-1,000 nT Few nT /Substorms Elongate-shape -- Few nT density bulges near the surface Pulses 0.
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.
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.
Akasofu himself has spent his entire career at the institute researching and publishing books on the auroras and the physics of magnetic storms.
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.
ANSWERS 1 Sprinter Usain Bolt; 2 Nearly pounds 13,000 according to Scottish Widows; 3 Prince Harry; 4 Tesco; 5 Naomie Harris; 6 Nissan; 7 Shaking hands; 8 Rio Ferdinand; 9 Prince Harry; 10 LulzSec; 11 Bournemouth, according to a survey by TripAdvisor; 12 Mitt Romney; 13 Jason Donovan; 14 Her 19-year-old daughter, Bobbi Kristina; 15 Solar particles after a magnetic storm on the Sun; 16 His brother, the Duke of Cambridge; 17 Liza Tarbuck; 18 Prince Harry; 19 Approximately 3.
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.
The data show that while a small amount of the missing energetic electrons did fall into the atmosphere, the vast majority were pushed away from the planet, stripped away from the radiation belt by the onslaught of solar wind particles during the heightened solar activity that generated the magnetic storm itself.