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EARTH SCIENCE > SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > SOLAR WIND
Definition:
The solar wind is hot solar plasma spreading from the solar corona in all
directions, at a typical speed of 300-1,000 km/sec. The solar wind is
essentially the hot solar corona on expanding in all directions into the
interplanetary space. The solar wind is diverted around the Earth by the
Earth's magnetic field, although some solar particles enter the Earth's field
at the poles. The solar wind carries coronal magnetic fields by a process known
as frozen in the flux. If these frozen in fields have the same North-South
orientation as the Earth's magnetic field, energy can be transferred into the
Earth's magnetosphere, leading to geomagnetic storms.
Reference:
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