Geomagnetic storm

related topics
{math, energy, light}
{island, water, area}
{system, computer, user}
{ship, engine, design}
{company, market, business}
{day, year, event}

A geomagnetic storm is a temporary disturbance of the Earth's magnetosphere caused by a disturbance in space weather. Associated with solar flares and resultant solar coronal mass ejections (CME), a geomagnetic storm is caused by a solar wind shock wave and/or cloud of magnetic field which typically strikes the Earth's magnetic field 3 days after the event. The solar wind pressure on the magnetosphere and the solar wind magnetic field will increase or decrease depending on the Sun's activity. The solar wind pressure changes modify the electric currents in the ionosphere, and the solar wind's magnetic field interacts with the Earth's magnetic field causing the entire structure to evolve. Magnetic storms usually last 24 to 48 hours, but some may last for many days.[citation needed] In 1989, an electromagnetic storm disrupted power throughout most of Quebec[1] and caused aurorae as far south as Texas.[2]

Contents

Full article ▸

related documents
Galilean moons
Ganymede (moon)
Attenuation
2 Pallas
Optical isolator
Rayleigh scattering
Near-Earth asteroid
Resonance
Optics
Proton decay
Huygens–Fresnel principle
Weak interaction
Elementary particle
Terrestrial planet
Gravitational constant
Plasma stability
Weight
Olbers' paradox
Star formation
Hypersonic
Gamma-ray astronomy
Gravitational singularity
Convection
Capacitance
Axial tilt
Cyclotron
Gluon
Radio telescope
Optical aberration
Hydrogen atom