Has there been a halo scene in many places in Guizhou?

At 1 1 on the morning of May 2, a rare solar halo scene appeared in Guiyang, Xingyi and Zunyi, Guizhou Province. Guizhou netizens rushed to report and take photos and upload them to the network. A wave of beautiful pictures of solar halo "exploded" in the circle of friends of Guizhou people.

A netizen in Xingyi said excitedly that not only herself, but many Xingyi people around her saw the solar halo landscape for the first time in the local area. "I was surprised to see a friend posting pictures in a circle of friends this morning. At first, everyone didn't know what this phenomenon was. Later, I looked it up on the Internet and it seemed to be called' solar halo'. It's really beautiful. The mobile phone took a lot of photos, and today the circle of friends is crazy. " Recently, the weather in Xingyi City is changeable. It rained two days ago, and there was hail on 1 1. After the weather cleared up today, there was an unexpected solar halo, which also made everyone curious about the causes of solar halo.

In order to solve people's doubts, the meteorological department of Guizhou Province also published a message on 12, and made relevant science popularization on the causes of solar halo.

Solar halo, also called round rainbow, belongs to atmospheric optical phenomenon. It is formed by the refraction or reflection of ice crystals when sunlight passes through cirrostratus. When light enters the ice crystals in cirrostratus, it is refracted twice and dispersed into light of various colors in different directions. Solar halo is a rare astronomical phenomenon, which can be divided into total halo and gap halo. The formation of solar halo is closely related to the cirrostratus of high clouds, and the existence of cirrostratus is one of the necessary conditions for the formation of solar halo. Cirrostratus "lives" at an altitude of more than 5000 meters above the ground. When it is "close" to the sun and the moon, it can form a magic sun and a lunar halo.