30 January 2025: PIB Summary For UPSC
Travel of magnetic pole from Canada to Siberia, disallows deeper dive of particles
(Source – https://pib.gov.in/PressReleseDetail.aspx?PRID=2097391®=3&lang=1 )
Topic: GS3 – Science and Technology |
Context |
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Movement of Earth’s north magnetic pole:
- Charged particles, like protons and electrons, create the Northern lights and are influenced by the Earth’s magnetic field.
- Scientists studied how this shift in the magnetic pole changed the altitude of these particles over time.
- In 1900, the magnetic field near Canada was stronger, and particles stayed at higher altitudes.
- By 2020, as the pole moved toward Siberia, the magnetic field in that region grew stronger, causing particles to reach altitudes that were 400 to 1200 kilometers higher.
- This shift affects satellites that orbit near the poles, as charged particles can cause drag, a force that slows them down.
- The particles can also heat the atmosphere, changing its density and affecting the paths of satellites.
- The change in the Earth’s magnetic field is important for understanding space weather and protecting our satellites from possible damage.
- By studying these changes, scientists can better predict space weather and safeguard technology in space.
Reason for movement of earth’s north magnetic pole: |
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