[Common sense] Why is the autumn sky high and blue?

the earth's atmosphere consisting of many substances such as air, water vapor, and dust
The light of the sun is scattered in all directions, hitting particles as it passes through these atmospheres,

This phenomenon is called the scattering of light.

If there is a lot of dust or water vapor in the atmosphere, it scatters at a low altitude, making the sky appear cloudy and low.

However, in autumn, dry winds often blow from the continent to form high pressure,
Water vapor and dust in the atmosphere of
tend to decrease, so the sky often looks clear.

In particular, light scatters more strongly when it collides with fine particles because the shorter the wavelength, the stronger
In the fall sky, where only
air particles remain, a blue light with a relatively short wavelength spreads well

Seeing a particularly high blue autumn sky

Climate change keeps summer longer and autumn shorter

The importance of the high blue autumn sky is growing.

Filmmaker: Wang Xion [wsion0809@ytn.co.kr ]