What are the colorful clouds in the sky?

The colorful clouds in the sky are 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.

There are three main conditions for the formation of colorful clouds:

1, a cloud located at the sun 10 to 40 degrees;

2. Clouds are thin clouds with even small water droplets, such as altocumulus clouds and cirrocumulus, especially lenticular clouds. Rare clouds, such as mother-of-pearl clouds, will form very bright colorful clouds;

On a sunny day.

Extended data

Colorful clouds everywhere in 2020:

On June 28th, 2020, "Colorful Xiangyun" appeared in the sky of Haikou.

On the evening of September 1 1, 2020, "Colorful Xiangyun" appeared over Nanning, Guangxi.

At about 2 pm on June 27th, 2020, 10, a colorful "colorful auspicious cloud" appeared over the urban area of Lijiang, Yunnan. ?

On June/KOOC-0/65438+/KOOC-0/October/KOOC-0/day in 2020, a beautiful and colorful Xiangyun landscape appeared over Erhai Lake.

On February 29, 2020, at 65438, a slender and rare colorful cloud appeared over Gongshan and Weixi in Nujiang, Yunnan, with rainbow-like color arrangement and obvious wavy appearance, which was very beautiful.