Traditional Culture Encyclopedia - Photography and portraiture - Why is the sky red on snowy nights?

Why is the sky red on snowy nights?

In fact, it is not only snowing, but also the place where the light source (that is, the moon) is located on cloudy days is red.

I think, just like blue light scattering on sunny days, the sky appears blue, and red light scattering on cloudy days appears red because clouds change the scattering wavelength and absorption wavelength of the atmosphere (longer). If your eyes are good enough, look at the sky carefully at night (it is best to have thin clouds when there is a moon), and you will find that the sky is actually dark blue, but it is black because there is no such big light source. On snowy days, it is much brighter than usual because of the total reflection of visible light (visible light can be any light source from the earth or space).