*HGT Section

RFM Driver Table Sections: Ray Path
24APR25
Type
Primary Section#6
Alternative to *TAN section.

Description
Specify heights of output levels for flux calculations

Format
Multiple fields[1], any order
Field Type Description Units Range
HGT R Output level[2] km BOA : TOA
HGTFIL C200 Name of a Data File [1]
Type: R=Real; Cn=character string, length n.
BOA = Bottom of the Atmosphere; TOA = Top of the Atmosphere

Notes

  1. HGTFIL The type of field is identified by first using the Fortran INQUIRE statement to see if it is a file (assumed to be a .dat file), in which case the file is opened and the numbers read from the file as if they were directly inserted within the section at that point. This can be used in combination with actual numerical fields.

  2. HGT: Flux calculations use a plane-parallel atmosphere with pressure as the vertical coordinate and actual height levels are arbitrary (unless HYD flag), so you can eg assign integer indices for the height scale. If an output HGT level is not a *HGT profile level an extra level will be interpolated.

Examples
*HGT 0 10 20 30 60 ! list of altitude levels [km] for outputs

Bugs
[None recent]