What is the weather sign of solar halo? What does a double solar halo portend?

The appearance of solar halo is a sign of thunderstorm in modern times, but it is a bad sign in ancient times, which means that something big is going to happen. So what is the sign of solar halo weather provided by constellation knowledge for everyone? What does a double solar halo portend?

What is the weather sign of solar halo? The appearance of solar halo often indicates the coming of thunderstorm, so it is also called wind circle. Only a large number of crystals can reflect such a colorful wreath. If citizens see it, they can prepare for rain and wind in advance.

According to meteorologists, double solar halo is a common atmospheric optical phenomenon, and its formation is related to high clouds. High clouds are generally composed of tiny ice crystals, which are equivalent to a prism. When sunlight passes through the ice crystals contained in high clouds, it will be refracted and reflected twice, forming a solar halo. Because the high clouds containing ice crystals are generally the "Depth Charge" invaded by thunderstorms, the appearance of solar halos often indicates that the weather will turn bad in a short time. Therefore, there is a saying in folk proverbs that the sun is dizzy in the middle of the night and the moon is dizzy at noon.

The observation methods of solar halo are usually 22 degrees and 46 degrees. People can usually observe the phenomenon of "solar halo" with the naked eye. The greater the ice crystal content in the clouds, the more obvious the halo, which is easy for people to observe. On the other hand, a "solar halo" cannot be formed, or even if it is formed, it cannot be clearly observed on the ground.

Observation: don't watch with naked eyes for a long time when the solar halo appears, so as not to burn your eyes. When it's going to rain, cirrus clouds like bird feathers often appear in the sky, and then a rainy cirrostratus appears in the air about 6 kilometers below the cirrus clouds. Due to the low temperature, the water droplets in the cloud become small ice crystals in the shape of hexagonal prisms. When the sun's light energy passes through the clouds, it will be refracted to small ice crystals. It seems that there is a circle around the sun, and the spectrum is from the inside out. This is a solar halo.

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