Why does the morning glow never die, and the sunset glow travels thousands of miles?

The basis of "don't go out at sunrise, travel thousands of miles at sunset" is to judge the state of clouds by observing the scattering of solar light, so as to judge the short-term weather changes.

1, stay indoors at sunrise:

The bright red glow before and after sunrise shows that there is a lot of water vapor in the atmosphere, with more water vapor and larger particles in the atmosphere, and the state of the sky is very unstable. Moreover, clouds have invaded this area from the west, which indicates that the weather will turn into rain according to the law of the weather system moving from west to east. It is recommended to go out carefully and bring rain gear.

2. A thousand miles at sunset:

The appearance of a bright red and golden sunset indicates that the weather in the upper reaches of our west has cleared up or the clouds have split, and the sunlight can penetrate to cause sunset, indicating that the rain clouds hanging over the local area are about to move eastward. At the same time, when the sun goes down, the atmospheric stratification gradually stabilizes and the convection weakens. According to the law of the weather system moving from west to east, the local weather will not get worse in the future, but it will clear up.

Extended data:

Haze is the result of sunlight passing through the thick atmosphere around sunrise and sunset and being scattered by a large number of air molecules. At sunrise and sunset, the sun shines obliquely on the ground. At this time, the light that can pass through the long atmosphere is almost only red, yellow and orange with longer wavelength, which is the color we usually see.

When there are many impurities in the air, such as dust and water vapor, its color is more obvious. If there are clouds, the clouds will be dyed bright orange and red, forming beautiful fiery red clouds. The closer the sun is to the horizon, the thicker the atmosphere it passes through, the longer the wavelength of the light that can "escape" and the redder the light it emits. On the contrary, the closer to the sky, the bluer the sky becomes.

Baidu Encyclopedia-Sunglow (Natural Phenomenon)

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