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11/12/2020 - Geography

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December 11, 2020

What is meant by a geomagnetic storm? How does it affect the space weather around the earth? Explain (200 Words)

Refer - The Indian Express

Enrich the answer from other sources, if the question demands.

 

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IAS Parliament 3 years

KEY POINTS

Geomagnetic storm

A geomagnetic storm is a major disturbance of Earth's magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth.

Influence on space weather

·        Auroras occur when charged particles ejected from the Sun’s surface  called the solar wind  enter the Earth’s atmosphere. The fast-moving solar wind which disrupts the magnetosphere .

·        The electromagnetic storm could cause the Northern Lights to be visible in more number of areas than usual.

·        Solar flares can typically affect space-dependent operations like Global Positioning Systems (GPS), radio and satellite communications, hampering flight operations, power grids and space exploration programmes.

·        At the time of spacewalks, astronauts face a great health risk posed by exposure to solar radiation outside Earth’s protective atmosphere.

·        Besides, the life of functional satellites, and even those which have now turned into debris, depends a lot on the Sun’s activities.

aswin 3 years

Please review

IAS Parliament 3 years

Good attempt. Try to provide subheadings. Keep Writing.

Priya sabalkar 3 years

Please check. Thank You !

IAS Parliament 3 years

Good attempt. Keep Writing.

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MONTH/YEARWISE - MAINSTORMING

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