VRT Flag | ||
RFM Flags: Suppress solid-angle integration in Flux calculations | 13APR24 |
or one could get the same answer using*FLG ZEN RAD OBS ! observer looking upwards at downwelling radiance ... *TAN (or *SEC) 1.0 ! defines vertical path ... *OBS 25.0 ! observer at 25km ... *END
The difference is that further entries in the *TAN section in the first example create additional spectra corresponding to different viewing angles, while in the second example these create downwelling spectra to different altitudes.*FLG ZEN RAD FLX VRT ! flux-type calc without solid-angle ... *TAN (or *LEV) 25.0 ! output at 25km ... *END