The tragedy of life is that we age too early and become smart too late. —Benjamin Franklin
On the evening of December 1, Yang Nan, an employee of Beijing's Baihuashan National Nature Reserve, photographed a rare aurora phenomenon (the red part in **)., which aroused heated discussions among netizens.
At the same time, the aurora posted by Mohe netizens has also attracted much attention.
Geomagnetic storms
Geomagnetic storm refers to the global severe disturbance of the earth's magnetic field, the scale and intensity of which can be measured by the geomagnetic kp index.
Severe geomagnetic storms can have a certain impact on human life, including but not limited to the following:
1.Electronic Device Impact:Geomagnetic storms can cause electronic equipment to malfunction, fail, or lose data, among other things, because geomagnetic storms produce electromagnetic radiation that interferes with the normal operation of electronic equipment.
2.Damage to the power system:Geomagnetic storms can cause damage to the power system, cause grid failures, and may even lead to power outages. This is because geomagnetic storms generate powerful electromagnetic fields that affect power facilities. 
3.Aircraft out of control:Geomagnetic storms can affect the navigation system of aircraft, causing aircraft to lose control, and in severe cases, air crashes. Geomagnetic storms produce electromagnetic radiation that interferes with the aircraft's navigation equipment and control systems.
The strongest geomagnetic storm in history was the Carrington event of 1859The geomagnetic storm lasted for six days, causing widespread power and water outages and huge economic losses.
Therefore, if a severe geomagnetic storm occurs, it is necessary to give early warning, and try to avoid outdoor activities, and do not use electronic devices such as mobile phones, laptops, and PDAs.
Aurora
According to early reports,Between the night of 5 November and the early hours of 6 November, there was magnetic storm activity.
During this period,Spectacular auroras appeared in many places in Heilongjiang and Xinjiang。In particular, the aurora scene photographed in Mohe, Heilongjiang Province, is shocking.
In the picture,The red and green aurora are intertwined, and the dancing posture is varied。It should be noted that this isFor the first time in China, the dancing scene of the green aurora was recorded in the first way.
Auroras are a striking plasma phenomenon that usually occurs only on planets with strong magnetic fields and atmospheres.
On Earth, the generation of auroras is closely related to the guidance of charged particles in the magnetosphere and the solar wind。These charged particles are guided into the atmosphere by the magnetosphere and collide with atoms in the atmosphere, which excite light of various colors.
The most common color is green, but sometimes other colors such as red, purple, and other colors can also be seen. In the dark night, the appearance of the aurora brings great surprise and opportunity to people, and it is a beautiful scenery in nature.
Why is the aurora mostly green?
Friends who have learned about the aurora may have a question, why such a magical aurora is green and red is the most common, first of all, let's understandThe principle of aurora generation:
We know that the composition of air contains hydrogen atoms, oxygen atoms, helium atoms, neon atoms, argon atoms, etc., whileThe energetic particles produced by solar activity collide with various atoms in the atmosphere, causing the outer free electrons to be excited into the upper orbits.
The excess energy thus generated is released in the form of photons, and the electrons fall back into their original orbits when the energy is exhausted.
The green aurora, for example, is formed by the collision of charged particles with oxygen atoms in the air. The red aurora is caused by charged particles colliding with oxygen atoms in the lower atmosphere.
According to incomplete statistics from scientists in 2012,At present, there are more than 160 kinds of hues that can be clearly distinguished.
Conclusion
The appearance of auroras is closely related to the solar cycle. As the solar cycle changes, the frequency and intensity of the aurora are also affected.
By monitoring solar activity, scientists are able to ** the activity level of the aurora, allowing us to better plan our aurora trip.
At the peak of solar activity, the aurora may be more frequent and spectacular, while during the trough it may be rarer. This natural charm attracts human beings to continue to explore the universe and learn more about the cosmic environment in which we live.
Part of the article** comes from the Internet, if there is any infringement, please contact the author to delete.