RFM Flags

DBL Flag: Write Spectra with Double Precision

09OCT17

Enabled
Output spectra written with full (ie double) precision

Disabled
Output spectra truncated to single precision

Restrictions
Incompatible with TAB flag (see note 1)

Notes
  1. Internally, the radiative transfer integration is always performed with Double Precision but uses Single Precision absorption coefficients (since most line parameters are only known with this accuracy), hence the incompatibility with the TAB flag. Double Precision output is only really necessary when considering transmittances close to 1.0 (in which case writing absorption, = 1-transmittance, spectra would be better), or when comparing different RFM runs with minor perturbations.

Bugs
[none reported]