What is a magnetic storm?

Magnetic storm refers to the change of the earth's magnetic field caused by high-speed solar wind and coronal mass ejection in the solar coronal hole, which leads to the beautiful aurora phenomenon in high latitudes.

The appearance of magnetic storm is usually accompanied by natural disasters such as strong current, lightning, storm and tsunami, which will affect the normal work of electronic equipment such as satellite navigation, radio communication and power grid. , and cause certain harm to human society and natural environment.

Although its name is magnetic storm, it is actually caused by the sun. It's not that I want to wronged Sun. It's just that the old man is a little out of control. Radiation and high-energy particles inside the sun slip away and escape from the solar magnetic field blockade. There may be some energy coming to the earth, which will be rude to the earth. This is a coronal mass ejection.

Take the earth as an example, there will be a magnetic field to protect itself. These charged particles will be in close contact with and interfere with the earth's magnetic field, which is the cause of geomagnetic storms.

Influence of magnetic storm

1. Communication interference: Magnetic storms may cause interference and attenuation of radio signals and affect the normal operation of wireless communication and satellite communication systems. This will have a certain impact on international long-distance communication, aviation, maritime communication and satellite navigation systems.

2. Power system failure: Magnetic storm may induce induced current in the power grid, leading to equipment failure or damage in the power system, and even lead to large-scale power outage. Especially in high latitudes, power networks are more vulnerable to geomagnetic storms.

3. Navigation system deviation: The magnetic storm will have an impact on the compass and the heading instrument, which will lead to the deviation of their indicating directions and bring troubles to navigation, aviation and navigation systems. This may lead to navigation error and positioning deviation, and increase the risk of accidents and navigation loss.

4. Increased risk of space activities: geomagnetic storms will have an impact on astronauts, satellites and spacecraft, increasing space risks, such as damaging solar panels and interfering with orbit control.

5. Effects of biological system: Studies have shown that geomagnetic storms may have some effects on biological systems, including the migration, navigation and positioning of animals induced by geomagnetic fields.

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