CO2 sub-Lorentzian line wings
HELIOS-K supports sub-Lorentzian profiles according to the \(\chi\) factors
from Perrin and Hartmann 1998. The \(\chi\) factors are specified in the files
chiPH89__CO2-CO2.dat
and chiPH89__CO2-N2.dat
. In these files, the affected
wavenumber range can be set. The param.dat
file contains the option
subLorentzianfile
, where the file name of the used \(\chi\) factors file
can be set. If a filename is set there, the sub-Lorentzian line wings are enabled.
In principle, the \(\chi\) factors can be applied also to other molecules than CO2, but this is not recommended to do.
M.Y.Perrin and J.M.Hartmann, 1988 (TEMPERATURE-DEPENDENT MEASUREMENTS AND MODELING OF ABSORPTION BY CO2-N2 MIXTURES IN THE FAR LINE-WINGS OF THE 4.3 # m CO2 BAND).
In Fig. 3 is shown an example of the sub-Lorentzian profile for CO2.
doStoreFullK = 1
cutMode = 0
cut = 25.0
profile = 1
subLorentzianfile = -
doStoreFullK = 1
cutMode = 0
cut = 25.0
profile = 1
subLorentzianfile = chiPH89__CO2-CO2.dat
- in chiPH89__CO2-CO2.dat:
range in cm^-1
2100 2500
doStoreFullK = 1
cutMode = 0
cut = 25.0
profile = 1
subLorentzianfile = chiPH89__CO2-CO2.dat
- in chiPH89__CO2-CO2.dat:
range in cm^-1
0 10000