Switch off absorption. Please note that this option simply sets the absorption optical thickness to 0.  

no_absorption [name]

 
If name is not set, all absorption (molecular, aerosol, cloud, ice cloud, and any profile) is switched off.

If used together with xxx_modify set tau this might be a bit confusing but probably the most logical way. E.g. when using aerosol_default and aerosol_modify set tau 1, the aerosol optical thickness is set to 1, with 0.940539 scattering and 0.059461 absorption. If no_absorption is added, the absorption optical thickness is set to 0 while the scattering optical thickness is preserved at 0.940539 (even though 1 was specified by the user). We find this the most logical solution of the problem because by switching no_absorption off and on one tests the effect of the absorber in an isolated way, rather than mixing absorption and scattering. The same is true for water and ice clouds. Note, that thermal emission of molecules is also switched off.

Possible choises for the optional argument name are:

mol

Switch off molecular absorption.