RFM Driver Table Sections


Primary Sections

The first 6 sections of the Driver Table are mandatory, and must appear in the following sequence:

*HDR Header Text for output files
*FLG Flags
*SPC Spectral Range & Resolution
*GAS List of Absorbers
*ATM Atmospheric Profiles
*TAN Tangent Heights (or other ray-path definitions) (Note 1)
[etc] (secondary and optional sections, any order)
*END End-of-File Marker (Note 2)

  1. Note that instead of *TAN, alternatives *DIM, *GEO, *ELE, *LEN, *LEV or *SEC may be used in specific cases.
  2. The last record of the Driver Table should be an End-of-File label, after which no further records are read (make sure that there is a <CR> after *END)

Secondary Sections

The requirement for the following sections depends on the contents of the
primary sections (especially the *FLG section). These may be input in any order after the primary sections. If not required the section will be ignored, but a warning message will be printed in the rfm.log file.
Label Description Flag
*CIA Collision-Induced Absorption Data CIA
*FIN Spectral Resolution of Fine Mesh calculation FIN
*FOV Field-of-View Data FOV
*GRD Irregular Grid Data GRD
*HIT HITRAN Line Data Note 1
*ILS Instrument Line Shape Data ILS
*JAC Jacobian calculation elements JAC
*LEV Intermediate Output Levels LEV
*LUT Look-Up Table Data LUT
*OBS Observer Location OBS
*PHY Change Physical Constants Note 3
*REJ Weak Line Rejection limits REJ
*SFC Surface Parameters SFC
*SHP Molecular Lineshapes (ie non-Voigt) SHP
*TPS Total Internal Partition Sum Data TPS
*XSC Molecular Cross-Section Data Note 2
  1. 'Line Molecules' are those represented by specific transitions in the HITRAN database, with HITRAN indices below 100
  2. 'Cross Section Molecules' are those (heavy molecules) with absorption coefficients tabulated as a function of wavenumber, pressure and temperature, indices 100 or higher
  3. The *PHY section has no associated flag - if it's present then its contents are read.

Optional Sections

The following sections are optional and can appear in any order after the
primary sections. These override the default output filenames so are only effective if the particular output option has been selected, otherwise the section is ignored and a warning message printed in the rfm.log file.

RFM v5.0 and later: these can all be replaced by the generic *OUT section, which also has the option of redirecting all output files to a different directory
*ABS Absorption Spectrum filename ABS
*BBT Brightness Temperature Spectrum filename BBT
*COO Cooling Rate Spectrum filename COO
*OPT Optical Depth Spectrum filename OPT
*PRF Internal Atmospheric Profile filename PRF
*PTH Path Diagnostics filename PTH
*RAD Radiance Spectrum filename RAD
*RJT Rayleigh-Jeans Temperature Spectrum filename RJT
*TAB Tabulated Absorption Coefficient filename TAB
*TRA Transmission Spectrum filename TRA
*WID Widmesh Diagnostics filename WID