Are multicolored auspicious clouds rare?

Caiyun refers to the natural phenomenon caused by solar rays and the structure of ice crystals in clouds, which is a typical "Japan-China" phenomenon. Under the right weather conditions, sunlight forms a right angle with the clouds. When sunlight passes through the clouds, the water vapor in the clouds above separates the solar spectrum through refraction and reflection, thus scattering seven colors of light.

At noon on August 8, 20 19, "colorful clouds" appeared over Hangzhou at 1. On June 28th, 2020, "Colorful Xiangyun" appeared in the sky of Haikou. In 20201October 27th 10, "Colorful Xiangyun" appeared over Lijiang. 1 65438+1October1,"Colorful Xiangyun" appeared over Erhai Lake.

On June 23, 2023, at 65438, a colorful auspicious cloud landscape appeared in the sky of Eryuan County, Dali Prefecture, Yunnan Province. On July 1 1 day, 2023, a large piece of "colorful auspicious clouds" appeared over Zhanjiang city, and passers-by stopped to enjoy it and picked up their mobile phones to shoot. On July 2, 2023, it rained in Wuhan. After the rain, colorful clouds appeared in the sky of Wuhan, which were clearly visible to the naked eye.

cause

This is because after the rain, the atmosphere is rich in water and sunlight refracts, which is an atmospheric phenomenon. When sunlight passes through a thin cloud suspended with water droplets, the water droplets diffract the passing light in different directions, and the diffracted light interferes with each other, and bright light will be seen at the junction of light waves, while the light at the offset is dark.

The diffraction angles of different colors are different, and the bright area of one color light appears in the dark area of another color light, gradually forming a color sequence. The farther away from the sun, the lighter the color. Because clouds are distributed in irregular sheets, irregular sheets of colorful clouds are produced.

Formation conditions: clouds located at the sun 10 to 40 degrees; Clouds are thin clouds with uniform water droplets, such as cumulus clouds and cirrocumulus, especially lenticular clouds. Rare clouds such as mother-of-pearl clouds will form very bright colorful clouds; A sunny day.