RFM Flags

REX Flag: Include Rayleigh Extinction

11DEC18

Enabled
Incorporate extinction due to Rayleigh Scattering into spectral calculations.

Disabled
No Rayleigh extinction

Restrictions
Incompatible with TAB Flag.

Notes
  1. Rayleigh extinction is only significant for wavenumbers >3000 cm-1 (wavelengths < 3 µm) — regions where the thermal emission of the atmosphere is negligible
  2. The extinction cross-section calculation is based on Bodhaine et al (1999) appropriate for the earth's atmosphere. For other atmospheres, refractivity (subroutine refrac_fnc.f90) and depolarisation (subroutine spcrex_fnc.f90) might have to be modified.

Bugs
[none reported]