Webpages tagged with «Halo photography»

Cirrus clouds influence Earth’s radiative energy budget as they scatter and absorb solar radiation (0.3 to 4.0 µm wavelength), and absorb and emit terrestrial radiation (4 to 100 µm). They either cool or warm the Earth’s climate depending on which of the two effects dominates. Beside the optical thickness and effective ice crystal radius, the sign of the radiative forcing of cirrus clouds depends crucially on the ice crystal shape and orientation.