The morning glow in Beijing is all red. Do you know how this scene came into being?

Sunglow is the result of sunlight passing through the thick atmosphere around sunrise and being scattered by a large number of air molecules. When there are many impurities in the air, such as dust and water vapor, its color is more obvious. If there are clouds, they will also be dyed orange and red. Recently, there have been scattered showers in Beijing. Although the rainfall is unevenly distributed, the weather after the rain is refreshing. With the precipitation, magical natural phenomena such as sunset glow and double rainbow also appear frequently.

The bright red glow before and after sunrise shows that there is already a lot of water vapor in the atmosphere, and clouds have invaded this area from the west, which indicates that the weather will turn to rain. The appearance of a bright red and golden sunset indicates that the weather in the upper reaches of our western region has cleared up or the clouds have split, and the sunlight can penetrate to cause the sunset glow, indicating that the rain clouds hanging over the local area are about to move eastward and the weather will clear up.

Why the sunset glow is red: colorful clouds often appear on the horizon before and after sunrise and sunset in the morning and evening. The morning glow and sunset glow are caused by the scattering of light by air. When sunlight enters the atmosphere, it will scatter when it meets atmospheric molecules and particles suspended in the atmosphere.

These atmospheric molecules and particles themselves do not emit light, but because they scatter sunlight, each atmospheric molecule forms a scattered light source. According to Rayleigh scattering law, light with shorter wavelength such as violet, blue and cyan in the solar spectrum is most easily scattered, while light with longer wavelength such as red, orange and yellow has stronger light transmission ability. So we see that the clear sky is always blue, while the light above the horizon is only yellow, orange and red with longer wavelengths. After these rays are scattered by impurities such as air molecules and water vapor, the sky there will be colorful.

The poem describing the morning glow is 1. Invite the bright moon after the night to meet the morning glow alone. ? Yuan Zhen, Ling 17? tea

2. Who sent Yu Qing to cut off the mourning clothes, so as to make the film dye the morning glow lighter? ? Li He's Thirteen Poems of South Garden

3, rice six gas drinks, is containing the morning glow. ? Qu Yuan traveled far.

4. The hibiscus flowers on Lake Furong are like the morning glow before the autumn wind falls. ? Nalan Xingde's "Sending Sun Friends"

5, the rainbow is full of morning glow, lascivious and rainy. ? Zhuang Ji's The Sorrow of Time

6, drinking day and night, bright light with the morning glow. ? Zhang Hua's thin article

7. The chemical industry is new and ingenious, and the morning glow is carved. ? He Zhu's "Morning glow on the Cape (peony remains the same)"

8, suspected Luochuan goddess, beautiful and charming to break the morning glow. ? Xu Ning's Peony

9, no sign of Joan, hate the difficulty of sunrise. ? Lu Ji's "Regret for the Past"

10, suddenly suspected that it was raining at dusk and what happened in the morning glow. ? Du Fu's Flower Bottom