The reporter learned from the China Meteorological Administration that on March 24, 25 and 26, geomagnetic activity may occur, of which there may be more than moderate geomagnetic storms or even geomagnetic storms on the 25th, and geomagnetic activities are expected to continue until the 26th.
- Under this influence, the orbital altitude of the space station may decrease due to atmospheric dragging, the positioning error of satellite navigation equipment will increase, and the aviation flight will face the dual risks of deterioration of the communication environment and radiation in the transpolar region.
- For the general public, aurora lovers will be treated to a beautiful sight, while pigeon players will be briefed on adverse weather conditions and long distances in the coming days.
What is a geomagnetic storm?
A geomagnetic storm is a typical type of solar eruptive activity. When the Sun erupts, coronal mass ejections occur, and a single ejection can throw hundreds of millions of tons of solar material off the surface of the Sun at high speeds of hundreds to thousands of meters per second. These substances not only contain the kinetic energy of the massive mass and velocity, but also carry the powerful magnetic energy of the sun. Once they hit the Earth, they trigger a change in the direction and magnitude of the geomagnetic field, known as a geomagnetic storm.
The coronal mass ejection process took place almost directly opposite the Earth, so that from the Earth, the eruption forms a circular surface, which is what we have called the "total halo" in the past. The solar material ejected by such explosive activities is fast and covers a high degree of coverage relative to the Earth, which may cause relatively strong geomagnetic activity.
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On November 30, 2023, the National Space Weather Monitoring and Warning Center of the China Meteorological Administration issued a geomagnetic storm warning, forecasting that geomagnetic storm activity may occur on November 30, December 1, and 2, 2023, of which a geomagnetic storm of moderate or higher or even a geomagnetic storm may occur on December 1, and geomagnetic activity is expected to continue until December 2.
Affected by geomagnetic storms, on December 1, auroras appeared in Beijing, Heilongjiang, Hulunbuir in Inner Mongolia and other places. detail