What's the name of that red cloud before sunrise?

In the early morning, when the sun just comes out, or when the sun is about to set in the evening, the clouds on the horizon are often red, like burning. People call this red cloud a burning cloud, also called sunrise and sunset. Sometimes, without clouds, the sky will appear fiery red, which is called burning the sky.

Flaming clouds are red clouds that appear at sunrise or sunset. The flaming cloud belongs to low cloud, which is one of the phenomena of atmospheric change. They often appear in summer.

The season, especially at sunset after a thunderstorm, is in the west of the sky. Due to the strong evaporation on the ground, the updraft in the atmosphere played a greater role in making the fire burn.

The shapes of clouds are ever-changing. The color of flame clouds is generally red. The appearance of flaming clouds shows that the weather is warm, the rainfall is abundant, and the biological growth is rich.

Mao's time has come.

Analysis of reasons

We already know that sunlight is a mixture of seven colors: red, orange, yellow, green, cyan, blue and purple. These colors have different wavelengths. Red light wave is the longest, followed by orange light wave, and purple light wave is the shortest. There are countless tiny dust and water droplets floating in the air, which can disperse the colors of the sun. This is called scattering. The shorter the wavelength of light waves in the sun, like purple and blue. The longer the wavelength, the less likely the red and orange light will scatter. In the morning or evening, sunlight is oblique, and it travels longer through the air layer, so it is scattered and greatly weakened. Violet light weakens the most, while red light or orange light weakens the least. These weakened colored sunlight shines on the sky and clouds, forming bright and dazzling rosy clouds.

When there are no clouds in the sky, there are few raindrops hanging in the air; At noon, the air layer is very thin, and almost all the red, orange, yellow and green light in the sunlight pass through, only blue, blue and purple light are blocked, and among these lights, blue light reflects the most, so the whole sky is dyed blue.

When the sun rises in the east in the morning or sets in the evening and hits the ground, the air layer it passes through is thicker than when the sun is at the top at noon. The yellow, green, cyan, blue and purple rays in sunlight are exhausted after walking in the air layer not far away, and cannot pass through the air layer. Only red and orange light can pass through the air layer and dye the horizon red.

Burning clouds can predict the weather, and there is a folk proverb called "you can't leave early, but you can travel thousands of miles late", that is to say, if there are burning clouds or burning days in the morning, the weather may get worse; Appear in the evening, and the next day will be a fine day.