What is a magnetic storm?

It means magnetic storm, usually called magnetic storm. After the high-speed plasma cloud ejected from the corona reaches the earth, it will cause global violent disturbance of the earth's magnetic field, which is called magnetic storm.

Describe the size of geomagnetic storms used by geomagnetic indices. There are three kinds of * * * indices: also called "three-hour magnetic index", which describes the geomagnetic disturbance intensity of a single geomagnetic station at three hours with a scale of 0-9*** 10.

Kp index: It is obtained by summarizing and calculating the K index of the global geomagnetic network 13 geomagnetic stations, and a value is generated every 3 hours to represent the global geomagnetic activity, with the value range of 0-9, and * * * is divided into 28 levels.

Dst index: Four geomagnetic stations distributed on the equator are selected according to roughly uniform longitude, and the average value of hourly geomagnetic horizontal intensity changes of these four geomagnetic stations is the Dst index.

Satellites may not communicate normally, which may affect people's normal life.

The power grid is easily damaged, and may even be burned, threatening people's health.

People who depend on the weather will feel uncomfortable and have a headache.