The 2003 edition of the GEISA/IASI spectroscopic database

Jacquinet-Husson, N.; Scott, N. A.; Chédin, A.; Garceran, K.; Armante, R.; Chursin, A.A.; Barbe, A.; Birk, Manfred; Brown, Linda R.; Camy‐Peyret, C.; Claveau, C.; Clerbaux, Cathy; Coheur, Pierre‐François; Dana, V.; Daumont, Ludovic; Debacker-Barilly, M.R.; Flaud, J.-M.; Goldman, A.; Hamdouni, A.; Heß, Michael; Jacquemart, D.; Köpke, Peter; Mandin, J.-Y.; Massie, S. T.; Михайленко, С.Н.; Nemtchinov, V.; Nikitin, A.V.; Newnham, David; Perrin, A.; Perevalov, V.I.; Régalia-Jarlot, L.; Rublev, A. N.; Schreier, Franz; Schult, Ingrid; Smith, Kevin M.; Tashkun, S.A.; Teffo, J.-L.; Toth, R. A.; Tyuterev, Vladimir G.; Auwera, J. Vander; Varanasi, P.; Wagner, Georg

doi:10.1016/j.jqsrt.2004.12.004

Cited by 154 publications

(86 citation statements)

References 101 publications

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“…In total, for all the four water isotopic species we have observed and assigned 3280 new lines which are not present in the HITRAN-2004 or GEISA/IASI-2003 data base compilations [35,59]. Transitions to the levels indicated by * were not resolved.…”

Section: Article In Pressmentioning

confidence: 95%

Fourier transform measurements of water vapor line parameters in the 4200–6600cm−1 region

Jenouvrier

Daumont

Régalia-Jarlot

et al. 2007

Journal of Quantitative Spectroscopy and Radiative Transfer

124

115

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New high-resolution water vapor absorption spectra were obtained at room temperature in the 4200-6600 cm À1 spectral region by combining Fourier transform spectrometers (FTS) with single and multiple reflection cells. With absorption paths from 0.3 to 1800 m in pure and air diluted water vapor, accurate measurements of about 10400 lines in an intensity range from 10 À29 to 10 À19 cm/molecule have been performed. Positions, intensities, self-and air-broadening coefficients and air-induced shifts were determined for the H 2 16 O, H 2 17 O, H 2 18 O and HDO isotopologues. The rovibrational assignment of the observed lines was performed with the use of global variational predictions and allowed the identification of several new energy levels. One major contribution of this work consists of the identification of 3280 new weak lines. A very close agreement between the new measured parameters and those listed in the database is reported as well as between the observations and the most recent variational calculations for the positions and the intensities. The present parameters provide an extended and homogeneous data set for water vapor, which is shown to significantly improve the databases for atmospheric applications, especially in the transmission windows on both sides of the band centered at 5400 cm À1 .

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Section: Article In Pressmentioning

confidence: 95%

Fourier transform measurements of water vapor line parameters in the 4200–6600cm−1 region

Jenouvrier

Daumont

Régalia-Jarlot

et al. 2007

Journal of Quantitative Spectroscopy and Radiative Transfer

124

115

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“…The increase of the peak depth (by a factor of about 2) due to the line narrowing at low temperature also contributes to the apparent increase of the absorption lines in the low temperature spectrum, independently of the variation of the line intensities during the cooling. N is the molecular concentration in molecule/cm 3 The dependence of line intensity versus temperature is as follows:…”

Section: Some Characteristics Of the Low Temperature Spectramentioning

confidence: 99%

“…Empirical line-by-line spectroscopic parameters as included in HITRAN [2] or GEISA [3] are then far from fulfilling the needs in the case of methane. For instance, above 5000 cm -1 , the HITRAN database provides empirical line parameters which were obtained at room temperature by high resolution Fourier Transform Spectroscopy (FTS) with path lengths up to 433 meters [4].…”

Section: Introductionmentioning

confidence: 99%

The near-infrared (1.30–1.70 μm) absorption spectrum of methane down to 77 K

Kassi

Gao

Romanini

et al. 2008

Phys. Chem. Chem. Phys.

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The high resolution absorption spectrum of methane has been recorded at liquid nitrogen temperature by direct absorption spectroscopy between 1.30 and 1.70 µm (5860-7680 cm -1 ) using a newly developed cryogenic cell and a series of DFB diode lasers. The investigated spectral range includes part of the tetradecad and the full icosad regions for which only very partial theoretical analysis are available. The analysis of the low temperature spectrum will benefit from the reduction of the rotational congestion and from the narrowing by a factor 2 of the Doppler linewidth allowing the resolution of a number of multiplets.Moreover, the energy value and rotational assignment of the angular momentum J of the lower state of a given transition can be obtained from the temperature variation of its line intensity. This procedure is illustrated in selected spectral regions by a continuous monitoring of the spectrum during the cell cool-down to 77 K, the temperature value being calculated at each instant from the measured Doppler linewidth. A short movie showing the considerable change of a spectrum during cool-down is attached as Supplementary Material. The method applied to a 30 cm -1 section of the tetradecad spectrum around 6110 cm -1 has allowed an unambiguous determination of the J value of part of the observed transitions.

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“…Line-mixing effects have been calculated in the ν 6 band of the main isotopologues of There exists a strong demand to include accurate spectroscopic data on the methyl bromide molecule in atmospheric databases as HITRAN [23] and GEISA [24], especially for the ν 6 band, which is located in an atmospheric window, and could be observed in long path solar occultation spectra at sunset or sunrise. The R Q 0 branch particularly, seems well suited for such studies, being located in a micro window, between two carbon dioxide lines and two water vapor lines.…”

Section: Resultsmentioning

confidence: 99%

Line mixing in the ν6 Q branches of self- and nitrogen-broadened methyl bromide

Tran

Jacquemart

Mandin

et al. 2008

Journal of Quantitative Spectroscopy and Radiative Transfer

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Line-mixing effects are studied in the ν 6 R Q K and P Q K (K = 0 -6) branches of CH 3 Br perturbed by nitrogen. Laboratory Fourier transform spectra have been obtained at room temperature, and for a large range of pressure values of atmospheric interest. In order to accurately model these spectra, a theoretical approach accounting for line-mixing effects is proposed. This model is based on the use of the state-to-state rotational cross-sections calculated by a statistical modified exponential-gap fitting law depending on a few empirical parameters. These parameters are deduced adjusting the calculated diagonal elements of the relaxation matrix to the N 2 -broadening coefficients, known from accurate previous measurements. Comparisons between experimental and calculated profiles for various Q branches and under various pressure conditions (0.2 -1 atm), demonstrate the adequacy and consistency of the proposed model. To allow accurate laboratory measurements, line-mixing effects are also modeled in the case of self-perturbed CH 3 Br.

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The 2003 edition of the GEISA/IASI spectroscopic database

Cited by 154 publications

References 101 publications

Fourier transform measurements of water vapor line parameters in the 4200–6600cm−1 region

Fourier transform measurements of water vapor line parameters in the 4200–6600cm−1 region

The near-infrared (1.30–1.70 μm) absorption spectrum of methane down to 77 K

Line mixing in the ν6 Q branches of self- and nitrogen-broadened methyl bromide

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