What is the purple lightning?

When lightning occurs, ionized air produces different wavelengths, and violet light with high energy, and vice versa. The colors of lightning are white, red and green.

The color of lightning is the same as the formation principle of rainbow, and the light emitted by lightning is also seven-color light. Because the water vapor in the clouds is heavy, it causes refraction, so that color can be seen when lightning strikes.

The temperature of lightning varies from 17000 degrees Celsius to 28000 degrees Celsius, which is 3~5 times the surface temperature of the sun. The extreme heat of lightning caused the air along the way to expand violently. Air moves very fast, so waves are formed and sounds are made.

Extended data

The cause of lightning formation

When the charge accumulated in thunderstorm weather reaches a certain amount, a strong electric field is formed between different parts of the cloud or between the cloud and the ground. The average electric field intensity can reach several thousand volts/cm, and it can be as high as 10000 volts/cm in some areas.

Such a strong electric field is enough to break through the atmosphere inside and outside the cloud, so dazzling flashes are excited between the cloud and the ground or between different parts of the cloud and between different clouds. This is what people often say about lightning.

A lightning process lasts about 0.25 seconds. In this short time, a huge amount of electric energy will be released in the narrow lightning channel, which will form a strong explosion, produce shock waves, and then form sound waves to spread around. Is this thunder or "thunder"

Baidu encyclopedia-lightning

Baidu Encyclopedia-Color Lightning