The magnetic field is extremely important to The Earth's magnetic field serves to deflect most of the solar wind, whose charged particles would otherwise strip away the ozone layer that protects the Earth from harmful ultraviolet radiation, hence protecting the life on Earth.Frequently, the Earth's magnetosphere is hit by solar flares causing geomagnetic storms, provoking displays of aurora. Recently, leaks have been detected in the magnetic field, which interact with the Sun's solar wind. During solar storms, this could result in large-scale blackouts and disruptions in artificial satellites.
The reversal of Magnetic Poles:
While the North and South magnetic poles are usually located near the geographic poles, they slowly and continuously move over geological time scales, but sufficiently slowly for ordinary compasses to remain useful for navigation. However, at irregular intervals averaging several hundred thousand years, the Earth's field reverse and the North and South Magnetic Poles respectively, abruptly switch places. These reversals of the geomagnetic poles leave a record in rocks that are of great value in calculating geomagnetic fields in the past. Such information in turn is helpful in studying the motion of continents and ocean floors in the process of plate tectonics.
Communication from the ground to satellites is affected by space weather. This includes radio signals from Global Positioning System (GPS) satellites. If the reversal of the poles were to occur today or maybe the magnetic field of Earth weakened somehow, it would disrupt satellites and communication systems, electricity, heating, air conditioning and internet, not to mention widespread blackouts could result in economic disruption measuring in tens of billions of dollars a day.
life on Earth. It is known as Geomagnetic Field. Without it, we would be exposed to high amounts of radiation from the Sun and our atmosphere would be free to leak into space.
Heat escaping from the Earth's outer core generates convection currents from the molten Iron and the movement of these currents makes Electric current which generates the magnetic field. Magnetic dipole of Earth is currently tilted at an angle of 11 degrees with respect to Earth's rotational axis.
Not all the planets have magnetic fields. The four bigger planets of our solar system, the gas giants have extremely strong magnetic fields. Earth has a moderately strong magnetic field. Mercury has an extremely weak field while Venus and Mars have no measurable fields.
The Earth's magnetic field serves to deflect most of the solar wind, whose charged particles would otherwise strip away the ozone layer that protects the Earth from harmful ultraviolet radiation, hence protecting the life on Earth.Frequently, the Earth's magnetosphere is hit by solar flares causing geomagnetic storms, provoking displays of aurora. Recently, leaks have been detected in the magnetic field, which interact with the Sun's solar wind. During solar storms, this could result in large-scale blackouts and disruptions in artificial satellites.
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