
wavelength-dependent scattering
Wavelength-dependent scattering occurs when particles in the atmosphere scatter sunlight differently depending on the light's wavelength, or color. Shorter wavelengths, like blue and violet, are scattered more efficiently than longer wavelengths like red. This is why the sky appears blue during the day; blue light is scattered in all directions by atmospheric particles. The degree of scattering varies with wavelength, affecting things like sky color at different times and the clarity of distant objects. This phenomenon is fundamental in understanding weather, climate, and how we perceive the world around us through the light that reaches our eyes.