Does the sunset glow portend good weather?

The bright red light in the morning indicates that there are many water droplets in the atmosphere, which indicates that the weather will turn to rain. If there is a fiery red or golden sunset glow, it means that there is no cloud in the west, and the sunlight can be transmitted to form a sunset glow, which indicates that the weather will be fine. This shows that the sunset glow generally indicates sunny weather.

Sunset, Chinese pinyin w m 4 n xi, means rosy clouds appearing on the horizon at sunset in the evening.

Formation principle

Colorful clouds often appear on the horizon around 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 higher frequencies such as green, blue and purple in the solar spectrum is most easily scattered, while light with lower frequencies such as red, orange and yellow has stronger diffraction and transmission ability.

So we see that the clear sky is always blue, and the light above the horizon is only low-frequency red, orange and yellow. After these rays are scattered by air molecules, water vapor and other impurities, colorful and beautiful Xia Hong will appear in the sky.