When is the magnetic storm in 2023?

A geomagnetic storm occurred on June 65438+February 1-2, Beijing time in 2023.

According to the official news of "Space Weather" WeChat of the National Space Weather Monitoring and Early Warning Center, from February 1 Day 17 to February 2 18, Beijing time, due to the solar coronal mass ejection (CME) outbreak, there were three hours of geomagnetic storms with Kp of 7, three hours of moderate geomagnetic storms with Kp of 6 and nine hours of small geomagnetic storms.

Kp index is a global magnetic field index, which reflects the earth's magnetic field activity every three hours. The larger the value, the stronger the geomagnetic activity. Under the influence of magnetic storms, aurora activities have appeared in Heilongjiang, Inner Mongolia, Xinjiang and other places in China, and even Beijing has clear aurora sightings and observation records this time.

As a typical solar burst activity, CME is driven by the strong magnetic field of sunspots, throwing out tens or even trillions of tons of coronal material at a high speed of hundreds to Qian Qian meters per second, forming an explosion-like shock wave, which quickly spreads to all parts of the solar system.

After being bombarded by it, the direction and size of the earth's magnetic field changed obviously, and geomagnetic storms followed. With the occurrence of magnetic storms, aurora appeared.

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.

Baidu encyclopedia-magnetic storm