Optical Depth or Optical Thickness The parameter of a transparent layer of gases or particles defined as the logarithm of the ratio between incident and
transmitted radiative flux.
Therefore, in cases, where a significant amount of surface
transmitted radiative flux is present in the OLR, Eqs.
To accommodate the finite flux optical depth of the atmosphere and the existence of
the transmitted radiative flux from the surface, the proper equations must be derived.
Not exact matches
You also deduct
radiative flux that is reflected and
transmitted.