Incoming and outgoing long-wave radiation, Satterlund

Incoming longwave radiation as a function of air temperature estimated with the Satterlund-formulation, compared with the outgoing longwave radiation calculated with the surface temperature set equal to the air temperature, for four different meteorological situations:

Blue = overcast sky; h=100%.                     Green = overcast sky; h = 60%.

Turquoise = clear sky; h = 100%.                         Red = clear sky; h = 60%.

Violet = outgoing radiation.