The influence of solar activity on the earth
1, affecting the ionosphere
The earth's atmosphere forms the ionosphere under the action of ultraviolet rays and X-rays radiated by the sun, and the radio waves of radio communication travel far away through the reflection of the ionosphere. When the solar activity is intense, especially when the flare erupts, in the sunny hemisphere, the strong X-rays and ultraviolet rays from the sun make the ionosphere layer D thicker, which leads to the enhancement of the long waves reflected by the layer D, while the short waves reflected by the layers E and F are strongly absorbed by the layer D and attenuated or even interrupted when passing through.
2, affect the climate
The relationship between solar activity and the earth's climate change is also obvious, and the earth's climate change is closely related to the cycle of sunspot number change. The interannual variation of precipitation in many parts of the world is related to the 1 1 annual cycle of sunspot activity.
3, affect the magnetic field
The whole earth is a big magnetic field. The north pole of the earth is the magnetic south pole of the geomagnetic field, and the south pole of the earth is the magnetic north pole of the geomagnetic field. There is an included angle of about 1 1 degree between the earth pole and the magnetic pole, so the earth is full of magnetic field lines, and different positions have different geomagnetic intensities. Usually, the geomagnetism is affected by many aspects, and there will be different degrees of disturbance, and the most influential is the magnetic storm phenomenon.
4, the outbreak of solar radio
It is a sudden change in the process of radio radiation on the sun. Solar radio includes quiet radio, slowly changing radio and radio burst. Among them, radio storms attract people's attention most.
5. Disturb the Earth's atmosphere
Short-wave radio communication on the ground will be affected, and even a short interruption will occur.
6. High-energy charged particles disturb the earth's magnetic field
The phenomenon of "magnetic storm" appears, which makes the magnetic needle vibrate violently and cannot indicate the direction correctly.
7. Aurora phenomenon
When the high-energy charged particle stream rushes into the polar upper atmosphere at high speed, the aurora phenomenon will appear.
8. Natural disasters
Cause natural disasters, such as earthquakes, floods and droughts.
Solar activity is the general name of all activities in the solar atmosphere, including sunspots, sunspots, flares, prominences and so on. It is caused by the electromagnetic process in the solar atmosphere, with an average period of 1 1 year.