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CCTV***ReleaseRecently, rare red-green aurora has appeared in many places in northern China, which has aroused widespread attention from netizens. Previously, the National Space Weather Monitoring and Warning Center of the China Meteorological Administration issued a geomagnetic storm warning on November 30, predicting that geomagnetic storm activity may occur on November 30, December 1 and December 2.
What isGeomagnetic storms
Refers to a strong disturbance of the global geomagnetic field. Coronal mass ejections from the Sun hit the Earth, interacting with the Earth's own magnetic field, causing a strong disturbance of the geomagnetic field.
Geomagnetic storms are like the "cosmic roar" on Earth, which is a violent reaction of the Earth's magnetic field caused by solar activity. When the sun releases a large storm of charged particles, these particles fly towards the earth and hit the earth's magnetic field, like a puppy chasing its tail in circles. This "impact" causes a drastic change in the Earth's magnetic field, which triggers a geomagnetic storm. Imagine that the Earth's magnetic field is like that of an old-fashioned dancer, and Sun Activity is her dance partner, and the two of them perform a thrilling magnetic field dance together.
A wonderful sequel to geomagnetic storms – Aurora
AuroraIt is the product of the cooperation between the earth's magnetic field and the solar storm, and it is a dance of light and magnetism in space. Charged particles released by solar storms enter the atmosphere along the corridors of the Earth's magnetic field, where they come into intense close contact with the gases in the atmosphere. At this time, the gas is like a gorgeous canvas in the night sky, which is inspired by a variety of gorgeous colors to form the aurora.
The aurora is like a colorful neon show in the earth's atmosphere, a wonderful light show in space. In the Arctic, the show is staged almost every day, like a never-tireless dancer dancing in the night sky. In Antarctica, there is also a different but equally beautiful Southern Lights from the Northern Lights, which is like an exclusive show prepared by nature for audiences in the southern hemisphere of the earth.
What does it mean for us?
Navigation and communication systems affected:Geomagnetic storms can cause ionospheric disturbances, affecting high-frequency communications and causing errors in GPS systems. This can pose some challenges for industries such as transportation, aviation, and marine, which rely on satellite navigation.
Stability of the power system:Large-scale geomagnetic storms can cause fluctuations in the power grid, which can have an impact on the stability of the power system. In past geomagnetic storm events, there have been reports of power equipment failures and blackouts in some areas.
Aerospace Activities:Ionospheric changes in the upper atmosphere can pose challenges for aerospace activities such as satellites, spacecraft and the International Space Station. This is one of the reasons why scientists keep a close eye on solar activity and geomagnetic storms during space missions.
Aurora viewing:When solar activity increases, the aurora may be visible at lower latitudes, providing more people with the opportunity to enjoy this natural wonder. Of course, this also means that more people have the opportunity to witness this beautiful sight with their own eyes during a geomagnetic storm.
Satellite and space communications:Solar storms and geomagnetic storms can have a negative impact on satellites and space communication systems operating in space.
While these effects may pose some challenges, scientists are constantly working to improve our ability to improve these phenomena through the study of solar activity and the Earth's magnetic field in order to better cope with possible impacts. Overall, geomagnetic storms and auroras provide us with unique and spectacular natural landscapes and are part of the complex and wonderful relationship between the Earth and the Sun.