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Highlights • CO 2 -broadening and shift coefficients of the sulfur dioxide in the 4 µm region. • Measured CO 2 -broadening coefficients for SO 2 are smaller than those from HITRAN2016. • Mean value of the CO 2 -shift coefficients for SO 2 in the 4 µm region is −0.0027 cm−1 atm−1. Abstract The absorption spectra of the mixture of SO 2 and CO 2 at different partial pressures of both gases have been recorded at room temperature in the 4 µm region using the Bruker IFS 125 HR FTIR spectrometer. The multispectrum fitting procedure has been applied to these spectra to recover the CO 2 -broadening and shift parameters of the sulfur dioxide spectral lines. The CO 2 broadening and the pressure induced shift coefficients for 1422 and 116 lines of the ν 1 + ν 3 A -type band of 32S16O 2 and 34S16O 2 , respectively, have been derived. Beside, these coefficients have been derived for 254 lines of the ν 1 + ν 2 + ν 3 − ν 2 hot band of 32S16O 2. The rotational dependence of the values of these coefficients is discussed. The CO 2 pressure induced shift coefficients for this molecule are published for the first time. The comparison of the obtained broadening coefficients to those published by other authors for one pure rotational line and for the lines of the ν 1 B -type band is given. [ABSTRACT FROM AUTHOR]

• The 2005 i - 00001 (i = 1,2) absorption bands of 12C16O 2 revisited. • First observation of the 20053 – 00001absorption band of 12C16O 2. • The first measurements of the line intensities of the 2005 i - 00001 (i = 1,2,3) bands of 12C16O 2. • The HITRAN2020 line parameters for the studied bands should be updated. The absorption spectra of carbon dioxide were recorded in the region from 13,500 to 14,200 cm−1, using a Bruker IFS 125 HR Fourier transform spectrometer and a 30 m multipass cell with the White type optical system. The recording was performed at spectral resolution of 0.03–0.04 cm−1, room temperature, path length of 1057.95 m and at three pressures of 252, 403 and 582 mbar. The achieved sensitivity (noise equivalent absorption) at the level of k ν = 6 × 10−10 cm−1 allowed detection of a number of lines of three 2005 i - 00001 (i = 1,2,3) bands of 12C16O 2 with the intensity values down to 10−29 cm−1/(molecule cm−2) at 296 K. The 20053–00001 band was observed for the first time. The line intensities for all bands were measured for the first time. The uncertainty of the line position measurements was estimated to be about 0.007 cm−1 for the unblended lines with a high value of the signal-to-noise ratio. The uncertainties of the retrieved line intensities for the strongest unblended lines are on the level of 10%. The spectroscopic constants for the three observed bands were fitted to the observed line positions. The vibrational transition dipole moments squared of these bands were fitted to the observed line intensities. A comparison of the measured line positions to those from the HITRAN2020 database was done. Finally a comparison of the measured line intensities to those contained in the HITRAN2020 database as well as in the new version of the Ames line list was also given. [ABSTRACT FROM AUTHOR]

• The CO 2 -broadening and shift parameters of about 2000 ethylene lines in the region of the ν 11 absorption band were measured. • A polynomial approximately describing the rotational dependence of the broadening of ethylene by CO 2 pressure is proposed. • The similarity of the CO 2 -broadening coefficient to those of self-broadening was revealed. The absorption spectra of the mixtures of ethylene and carbon dioxide at seven different partial pressures of both gasses have been recorded using the Bruker IFS 125 HR FTIR spectrometer at room temperature in the 3.3 µm region. The multispectrum fitting procedure has been applied to these spectra to recover the spectral line parameters. The broadening and shift coefficients induced in ethylene by carbon dioxide pressure have been obtained for almost 2000 lines in the region of the ν 11 absorption band between 2928 and 3056 cm−1. The rotational dependence of the broadening parameters was analyzed. The similarity of the CO 2 -broadening coefficient to the self-broadening coefficient was revealed and discussed. [Display omitted] [ABSTRACT FROM AUTHOR]

Abstract: The assignment of the high resolution Fourier transform spectra of carbon dioxide enriched in 17O and 18O which were recorded in LADIR (Paris, France) with the Bruker IFS 125-HR between 1800 and 9000cm−1 and in USTC (Hefei, China) with the Bruker IFS 120-HR between 1700 and 9000cm−1 was performed. In total 239 bands of 12 isotopologues: 16O12C16O, 16O12C18O, 16O13C16O, 16O13C18O, 18O12C18O, 18O13C18O, 16O12C17O, 17O12C17O, 17O12C18O, 16O13C17O, 17O13C17O and 17O13C18O were observed. Among them, 99 bands were observed for the first time. The majority of new observed bands belong to 17OCO isotopologues. The positions of 23,003 lines were determined with the experimental uncertainty on the level of 0.001cm−1. The spectroscopic constants were fitted to the observed line positions for all observed bands. [Copyright &y& Elsevier]

The line positions and intensities of carbon dioxide isotopologues have been retrieved between 5900 and 6400 cm −1 region from Fourier transform spectra of 17 O- and 18 O-enriched carbon dioxide recorded in LADIR (Paris, France) with the Bruker IFS 125-HR. In total 1634 line positions and intensities of 20 bands of the 5 major CO 2 isotopologues present in our sample 16 O 12 C 17 O (39.48%), 17 O 12 C 17 O (27.73%), 16 O 12 C 16 O (15.20%), 16 O 12 C 18 O (7.32%) and 17 O 12 C 18 O (8.25%) are retrieved. All studied bands belong to the Δ P =8 (only for asymmetric species) and 9 series of transitions, where P = 2 V 1 + V 2 + 3 V 3 is the polyad number ( V i are vibrational quantum numbers). The accuracy of the line position determination is about 0.3×10 −3 cm −1 for the unblended and not very weak lines and the accuracy for the line intensities varies from 4% to 30% depending on the intensity of the line and on the extent of the line overlapping. For the 16 O 12 C 17 O, 17 O 12 C 17 O, 16 O 12 C 18 O and 17 O 12 C 18 O isotopologues the systematic comparisons have been performed with the recent CRDS measurements. [ABSTRACT FROM AUTHOR]

The line positions and intensities of carbon dioxide isotopologues have been retrieved in the 4681–5337 cm −1 spectral range from Fourier transform spectra of carbon dioxide recorded in LADIR (Paris, France) with the Bruker IFS 125-HR [Jacquemart D, et al., J Quant Spectrosc Radiat Transf 2012;113:961–975]. In total 6386 line positions and intensities of 89 bands of 12 isotopologues 16 O 12 C 16 O, 16 O 13 C 16 O, 16 O 12 C 18 O, 16 O 12 C 17 O, 16 O 13 C 18 O, 16 O 13 C 17 O, 18 O 12 C 18 O, 17 O 12 C 18 O, 17 O 12 C 17 O, 18 O 13 C 18 O, 17 O 13 C 18 O, and 17 O 13 C 17 O have been retrieved. 23 bands were newly assigned. All studied bands belong to the Δ P =7 series of transitions, where P = 2 V 1 + V 2 + 3 V 3 is the polyad number ( V i are vibrational quantum numbers). The accuracy of the line position measurement is about 0.3×10 −3 cm −1 for the unblended and not very weak lines. The accuracy of the line intensities varies from 4% to 15% depending on the isotopologue, on the intensity of the line and on the extent of the line overlapping. The observed intensities were used to fit the effective dipole moment parameters for the Δ P =7 series of transitions in 16 O 12 C 18 O, 16 O 12 C 17 O, 12 C 17 O 2 , 17 O 12 C 18 O, 16 O 13 C 17 O, 13 C 17 O 2 and 17 O 13 C 18 O isotopologues of carbon dioxide. [ABSTRACT FROM AUTHOR]

Abstract: The line positions and intensities of carbon dioxide isotopologues have been retrieved in 3200–4700cm−1 region from Fourier transform spectra of carbon dioxide recorded in LADIR (Paris, France) with the Bruker IFS 125-HR [Jacquemart D et al. J Quant Spectrosc Radiat Trans 2012;113:961–75]. In total 11318 line positions and intensities of 151 bands of 12 isotopologues 16O12C16O, 16O13C16O, 16O12C18O, 16O12C17O, 16O13C18O, 16O13C17O, 18O12C18O, 17O12C18O, 18O13C18O, 17O12C17O, 17O13C18O, and 17O13C17O have been retrieved. 53 bands were newly assigned. All studied bands belong to the ΔP=5 and ΔP=6 series of transitions, where is the polyad number (V i are the vibrational quantum numbers). The accuracy of the line position measurement is about 0.3×10−3 cm−1 for the unblended and not very weak lines. The accuracy of the line intensities varies from 4% to 15% depending on the isotopologue, on the intensity of the line and on the extent of the line overlapping. The spectroscopic constants for the majority of the observed bands have been derived. The observed line positions together with those collected from the literature were used to fit the effective Hamiltonian parameters for the 16O12C17O and 17O12C17O isotopologues. In both cases the fitted models were capable of reproducing the measured line positions with accuracy compatible with the measurement uncertainties (rms are 0.0011cm−1 and 0.0009cm−1 for 16O12C17O and 17O12C17O, respectively). The observed intensities were used to fit the effective dipole moment parameters for the ΔP=5 and ΔP=6 series of transitions of 16O12C17O, 17O12C17O and 16O12C18O isotopologues of carbon dioxide. [Copyright &y& Elsevier]

Abstract: Fourier transform spectra of carbon dioxide enriched in 17O and 18O have been recorded in LADIR (Paris, France) with the Bruker IFS 125-HR between 2000 and 9000cm−1 at an unapodized resolution of 0.0056cm−1. In this contribution we present a total of 1861 line positions and intensities retrieved for 46 bands of 12CO2 isotopologues between 2000 and 7000cm−1 including the 16O12C16O, 17O12C17O, 18O12C18O, 16O12C18O, 16O12C17O, and 17O12C18O species. The objective of this first part of work was to examine the absolute concentrations of various CO2 isotopologues in the sample by comparing our measurements of the line intensities to those available in literature and in HITRAN 2008. The accuracy of the determined abundances of the various isotopologues in our sample could be estimated to be about 2–7% for all above listed isotopologues except for 17O12C17O for which the accuracy on abundance is estimated to be around 20%. The accuracy of the line positions retrieval is better than 0.1×10−3 cm−1. We estimate the relative uncertainty of the line intensities retrieval to be around 1–2% (except for very weak lines), whereas the absolute accuracy to be around 3–15% depending mainly on the accuracy of the determination of the partial pressures for the various isotopologues in our sample, but also on the line strengths and on the spectral region. The estimation of the partial pressures of the various CO2 isotopologues is crucial for retrieving absolute values of line intensities, but this is not an easy task because there are no absolute calibration standards for CO2 intensities. Among the results obtained in this work, measurements are obtained for the first time for the 10011–00001 band of 17O12C17O, 16O12C17O, 16O12C18O, and 18O12C18O species, for the 00011–00001 band of 17O12C18O, and for the 2001i–00001 (i=1, 2, and 3) bands of the 16O12C17O isotopologue. [Copyright &y& Elsevier]

Three bands 4003 i –00001 ( i =2, 3, 4) of the Fermi pentad of 12 C 16 O 2 near 830 nm have been recorded with a continuous-wave cavity ring down spectrometer. A sensitivity at the 5×10 –11 cm −1 level allowed us to obtain line positions and intensities of these very weak bands. The measured line intensities of these three bands together with those published for the 10051–00001 and 10052–00001 bands were used to obtain the effective dipole moment parameters of 12 C 16 O 2 for the Δ P =17 series of transitions, where P =2 V 1 + V 2 +3 V 3 is a polyad number ( V i ( i =1, 2, 3) are vibrational quantum numbers). Comparisons of the measured line positions and intensities of the 4003 i –00001 ( i =2, 3, 4) bands to those from the AMES and GEISA line lists are given. [ABSTRACT FROM AUTHOR]

The absorption spectra of carbon dioxide have been recorded in two wavenumber ranges 9250–9500 cm −1 and 10,700–10,860 cm −1 of the near infrared region using a Bruker IFS 125 HR Fourier transform spectrometer and a 30 m multipass cell with the White type optical system. The spectra were recorded at spectral resolution of 0.03 cm −1 , room temperature, path length of 726.7 m and at four pressures ranging from 187 to 674 mbar. The achieved sensitivity (noise equivalent absorption) at the level of k ν =7.2×10 −10 cm −1 allowed detection of numerous new transitions with intensity values down to 5×10 −29 cm/molecule. The respective measurement time is about 20 h. The multispectrum fittings with the Voigt profile were performed to retrieve the line positions and intensities of 12 observed bands. Three hot bands of 12 C 16 O 2 in the 9250–9500 cm −1 region were detected for the first time. The line intensities of 30032−00001 and 30033−00001 bands of 12 C 16 O 2 and of 20032−00001 band of 16 O 12 C 18 O were measured for the first time. The uncertainty of the line position determination is estimated to be about 0.001 cm −1 for the unblended lines with high value of signal-to-noise ratio. The uncertainty of the line intensity determination varies from 5% to 40% depending on the line strength and on extent of line overlapping. The measured line intensities of 30032−00001 and 30033−00001 bands together with those published for the 00051−00001 band were used to fit the effective dipole moment parameters of 12 C 16 O 2 for the Δ P =15 series of transitions, where P =2 V 1 + V 2 +3 V 3 is a polyad number ( V i ( i =1,2,3) are vibrational quantum numbers). The fitted parameters reproduce the measured line intensities within experimental uncertainties. Comparison of the measured line positions and intensities to those contained in HITRAN, GEISA, CDSD and AMES line lists is given. [ABSTRACT FROM AUTHOR]

Abstract: Absorption spectra of carbon dioxide, 12C16O2, have been studied in the three wavenumber ranges (8790–8860, 9340–9650 and 11,430–11,505cm−1) of the near infrared region using spectrophotometric complex of V.E. Zuev Institute of Atmospheric Optics based on an Bruker IFS 125 HR and a 30m multipass cell with the White type optical system. The spectra were recorded at spectral resolution of 0.015cm−1, path length of 613.82m and at pressure range from 209 to 400mbar. The multispectrum fittings with the Voigt profile were performed to retrieve the line positions and intensities of eight bands 5001r−00001 (r=3, 4), 2003r−00001 (r=1,2,3) 2113r−01101 (r=1,2) and 00051−00001. The uncertainty of the line position determination is estimated to be about 0.001cm−1. The absolute accuracy of the line intensity measurement is 5% for 5001r−00001 (r=3,4) bands, 3% for 2003r−00001 (r=1,2,3) bands, 10% for 00051−00001 band and 15% for 2113r−01101 (r=1,2) bands. The measured line intensities were used to fit the effective dipole moment parameters of 12C16O2. The fitted parameters reproduce the measured line intensities within their experimental uncertainties. A comparison of measured positions and intensities with those contained in HITRAN, CDSD, AMES-296, and High-T databases is presented and discussed. [Copyright &y& Elsevier]