Ylivalottuneessa
Ylivalottuneessa is a Finnish term that translates to "above the clouds" in English. It refers to a phenomenon where the sky appears to be clear and free of clouds, even when the weather is overcast or rainy at lower altitudes. This optical illusion occurs due to the scattering of light by the atmosphere. When the sun is low on the horizon, its light travels through a greater thickness of the Earth's atmosphere, which scatters the shorter blue and green wavelengths of light more than the longer red and orange wavelengths. This selective scattering causes the sky to appear red or orange, while the clouds below may still appear gray or white, creating the illusion of a clear sky above the clouds. Ylivalottuneessa is most commonly observed during sunrise or sunset, and it is a popular subject for photographers and nature enthusiasts.