An isolated line-shape model to go beyond the Voigt profile in spectroscopic databases and radiative transfer codes

Line shapes, positions and intensities of water transitions near 1.28μm

“…Systematic departures of water line shapes from the Voigt profile are well documented, with a representative summary being Refs. of Ngo et al [24]. Line narrowing in the ν 2 band water transitions was reported over 40 years ago by Eng et al [25] and was assigned to the effect of molecular diffusion.…”

First continuous measurements of δ<sup>18</sup>O-CO<sub>2</sub> in air with a Fourier transform infrared spectrometer

“…These spectrum models optionally extend to non-Voigt line shapes including effects of speed dependent cross sections, line narrowing and line mixing (e.g. Ngo et al, 2013). Using several different line shape models did not remove the spectral residuals -in some cases they were slightly reduced or of different shape, but total residuals were reduced by at most 25 %.…”

Self-broadening and -shifting of very intense lines of the 1←0 band of 12 C 16 O

“…For the analysis of the recordings, the latter was calculated assuming Voigt line-shapes. Although it is now well known [17,18] that this is not the best profile (e.g. [3,10] for CO) we have retained it for several reasons.…”